Start moving Source/WebKit to Source/web

Source/WebKit/chromium/src/WebFrameImpl.cpp

-/*
- * Copyright (C) 2009 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-// How ownership works
-// -------------------
-//
-// Big oh represents a refcounted relationship: owner O--- ownee
-//
-// WebView (for the toplevel frame only)
-//    O
-//    |
-//   Page O------- Frame (m_mainFrame) O-------O FrameView
-//                   ||
-//                   ||
-//               FrameLoader O-------- WebFrame (via FrameLoaderClient)
-//
-// FrameLoader and Frame are formerly one object that was split apart because
-// it got too big. They basically have the same lifetime, hence the double line.
-//
-// WebFrame is refcounted and has one ref on behalf of the FrameLoader/Frame.
-// This is not a normal reference counted pointer because that would require
-// changing WebKit code that we don't control. Instead, it is created with this
-// ref initially and it is removed when the FrameLoader is getting destroyed.
-//
-// WebFrames are created in two places, first in WebViewImpl when the root
-// frame is created, and second in WebFrame::CreateChildFrame when sub-frames
-// are created. WebKit will hook up this object to the FrameLoader/Frame
-// and the refcount will be correct.
-//
-// How frames are destroyed
-// ------------------------
-//
-// The main frame is never destroyed and is re-used. The FrameLoader is re-used
-// and a reference to the main frame is kept by the Page.
-//
-// When frame content is replaced, all subframes are destroyed. This happens
-// in FrameLoader::detachFromParent for each subframe.
-//
-// Frame going away causes the FrameLoader to get deleted. In FrameLoader's
-// destructor, it notifies its client with frameLoaderDestroyed. This calls
-// WebFrame::Closing and then derefs the WebFrame and will cause it to be
-// deleted (unless an external someone is also holding a reference).
-
-#include "config.h"
-#include "WebFrameImpl.h"
-
-#include "public/platform/Platform.h"
-#include "public/platform/WebFileSystem.h"
-#include "public/platform/WebFileSystemType.h"
-#include "public/platform/WebFloatPoint.h"
-#include "public/platform/WebFloatRect.h"
-#include "public/platform/WebPoint.h"
-#include "public/platform/WebRect.h"
-#include "public/platform/WebSize.h"
-#include "public/platform/WebURLError.h"
-#include "public/platform/WebVector.h"
-#include "wtf/CurrentTime.h"
-#include "wtf/HashMap.h"
-#include <algorithm>
-#include "AssociatedURLLoader.h"
-#include "AsyncFileSystemChromium.h"
-#include "DOMUtilitiesPrivate.h"
-#include "EventListenerWrapper.h"
-#include "FindInPageCoordinates.h"
-#include "HTMLNames.h"
-#include "PageOverlay.h"
-#include "V8DOMFileSystem.h"
-#include "V8DirectoryEntry.h"
-#include "V8FileEntry.h"
-#include "WebConsoleMessage.h"
-#include "WebDOMEvent.h"
-#include "WebDOMEventListener.h"
-#include "WebDataSourceImpl.h"
-#include "WebDevToolsAgentPrivate.h"
-#include "WebDocument.h"
-#include "WebFindOptions.h"
-#include "WebFormElement.h"
-#include "WebFrameClient.h"
-#include "WebHistoryItem.h"
-#include "WebIconURL.h"
-#include "WebInputElement.h"
-#include "WebNode.h"
-#include "WebPerformance.h"
-#include "WebPlugin.h"
-#include "WebPluginContainerImpl.h"
-#include "WebPrintParams.h"
-#include "WebRange.h"
-#include "WebScriptSource.h"
-#include "WebSecurityOrigin.h"
-#include "WebSerializedScriptValue.h"
-#include "WebViewImpl.h"
-#include "bindings/v8/DOMWrapperWorld.h"
-#include "bindings/v8/ScriptController.h"
-#include "bindings/v8/ScriptSourceCode.h"
-#include "bindings/v8/ScriptValue.h"
-#include "bindings/v8/V8GCController.h"
-#include "core/dom/Document.h"
-#include "core/dom/DocumentMarker.h"
-#include "core/dom/DocumentMarkerController.h"
-#include "core/dom/IconURL.h"
-#include "core/dom/MessagePort.h"
-#include "core/dom/Node.h"
-#include "core/dom/NodeTraversal.h"
-#include "core/dom/UserGestureIndicator.h"
-#include "core/dom/default/chromium/PlatformMessagePortChannelChromium.h"
-#include "core/dom/shadow/ShadowRoot.h"
-#include "core/editing/Editor.h"
-#include "core/editing/FrameSelection.h"
-#include "core/editing/SpellChecker.h"
-#include "core/editing/TextAffinity.h"
-#include "core/editing/TextIterator.h"
-#include "core/editing/htmlediting.h"
-#include "core/editing/markup.h"
-#include "core/history/BackForwardController.h"
-#include "core/history/HistoryItem.h"
-#include "core/html/HTMLCollection.h"
-#include "core/html/HTMLFormElement.h"
-#include "core/html/HTMLFrameOwnerElement.h"
-#include "core/html/HTMLHeadElement.h"
-#include "core/html/HTMLInputElement.h"
-#include "core/html/HTMLLinkElement.h"
-#include "core/html/PluginDocument.h"
-#include "core/inspector/InspectorController.h"
-#include "core/inspector/ScriptCallStack.h"
-#include "core/loader/DocumentLoader.h"
-#include "core/loader/FormState.h"
-#include "core/loader/FrameLoadRequest.h"
-#include "core/loader/FrameLoader.h"
-#include "core/loader/IconController.h"
-#include "core/loader/SubstituteData.h"
-#include "core/page/Chrome.h"
-#include "core/page/Console.h"
-#include "core/page/DOMWindow.h"
-#include "core/page/EventHandler.h"
-#include "core/page/FocusController.h"
-#include "core/page/FrameTree.h"
-#include "core/page/FrameView.h"
-#include "core/page/Page.h"
-#include "core/page/Performance.h"
-#include "core/page/PrintContext.h"
-#include "core/page/Settings.h"
-#include "core/platform/AsyncFileSystem.h"
-#include "core/platform/ScrollTypes.h"
-#include "core/platform/ScrollbarTheme.h"
-#include "core/platform/chromium/ClipboardUtilitiesChromium.h"
-#include "core/platform/chromium/TraceEvent.h"
-#include "core/platform/graphics/FontCache.h"
-#include "core/platform/graphics/GraphicsContext.h"
-#include "core/platform/graphics/GraphicsLayerClient.h"
-#include "core/platform/graphics/skia/SkiaUtils.h"
-#include "core/platform/network/ResourceHandle.h"
-#include "core/platform/network/ResourceRequest.h"
-#include "core/rendering/HitTestResult.h"
-#include "core/rendering/RenderBox.h"
-#include "core/rendering/RenderFrame.h"
-#include "core/rendering/RenderLayer.h"
-#include "core/rendering/RenderObject.h"
-#include "core/rendering/RenderTreeAsText.h"
-#include "core/rendering/RenderView.h"
-#include "core/rendering/style/StyleInheritedData.h"
-#include "core/xml/XPathResult.h"
-#include "modules/filesystem/DOMFileSystem.h"
-#include "modules/filesystem/DirectoryEntry.h"
-#include "modules/filesystem/FileEntry.h"
-#include "modules/filesystem/FileSystemType.h"
-#include "weborigin/KURL.h"
-#include "weborigin/SchemeRegistry.h"
-#include "weborigin/SecurityPolicy.h"
-
-using namespace WebCore;
-
-namespace WebKit {
-
-static int frameCount = 0;
-
-// Key for a StatsCounter tracking how many WebFrames are active.
-static const char* const webFrameActiveCount = "WebFrameActiveCount";
-
-// Backend for contentAsPlainText, this is a recursive function that gets
-// the text for the current frame and all of its subframes. It will append
-// the text of each frame in turn to the |output| up to |maxChars| length.
-//
-// The |frame| must be non-null.
-//
-// FIXME: We should use StringBuilder rather than Vector<UChar>.
-static void frameContentAsPlainText(size_t maxChars, Frame* frame, Vector<UChar>* output)
-{
-    Document* document = frame->document();
-    if (!document)
-        return;
-
-    if (!frame->view())
-        return;
-
-    // TextIterator iterates over the visual representation of the DOM. As such,
-    // it requires you to do a layout before using it (otherwise it'll crash).
-    if (frame->view()->needsLayout())
-        frame->view()->layout();
-
-    // Select the document body.
-    RefPtr<Range> range(document->createRange());
-    ExceptionCode exception = 0;
-    range->selectNodeContents(document->body(), exception);
-
-    if (!exception) {
-        // The text iterator will walk nodes giving us text. This is similar to
-        // the plainText() function in core/editing/TextIterator.h, but we implement the maximum
-        // size and also copy the results directly into a wstring, avoiding the
-        // string conversion.
-        for (TextIterator it(range.get()); !it.atEnd(); it.advance()) {
-            const UChar* chars = it.characters();
-            if (!chars) {
-                if (it.length()) {
-                    // It appears from crash reports that an iterator can get into a state
-                    // where the character count is nonempty but the character pointer is
-                    // null. advance()ing it will then just add that many to the null
-                    // pointer which won't be caught in a null check but will crash.
-                    //
-                    // A null pointer and 0 length is common for some nodes.
-                    //
-                    // IF YOU CATCH THIS IN A DEBUGGER please let brettw know. We don't
-                    // currently understand the conditions for this to occur. Ideally, the
-                    // iterators would never get into the condition so we should fix them
-                    // if we can.
-                    ASSERT_NOT_REACHED();
-                    break;
-                }
-
-                // Just got a null node, we can forge ahead!
-                continue;
-            }
-            size_t toAppend =
-                std::min(static_cast<size_t>(it.length()), maxChars - output->size());
-            output->append(chars, toAppend);
-            if (output->size() >= maxChars)
-                return; // Filled up the buffer.
-        }
-    }
-
-    // The separator between frames when the frames are converted to plain text.
-    const UChar frameSeparator[] = { '\n', '\n' };
-    const size_t frameSeparatorLen = 2;
-
-    // Recursively walk the children.
-    FrameTree* frameTree = frame->tree();
-    for (Frame* curChild = frameTree->firstChild(); curChild; curChild = curChild->tree()->nextSibling()) {
-        // Ignore the text of non-visible frames.
-        RenderView* contentRenderer = curChild->contentRenderer();
-        RenderPart* ownerRenderer = curChild->ownerRenderer();
-        if (!contentRenderer || !contentRenderer->width() || !contentRenderer->height()
-            || (contentRenderer->x() + contentRenderer->width() <= 0) || (contentRenderer->y() + contentRenderer->height() <= 0)
-            || (ownerRenderer && ownerRenderer->style() && ownerRenderer->style()->visibility() != VISIBLE)) {
-            continue;
-        }
-
-        // Make sure the frame separator won't fill up the buffer, and give up if
-        // it will. The danger is if the separator will make the buffer longer than
-        // maxChars. This will cause the computation above:
-        //   maxChars - output->size()
-        // to be a negative number which will crash when the subframe is added.
-        if (output->size() >= maxChars - frameSeparatorLen)
-            return;
-
-        output->append(frameSeparator, frameSeparatorLen);
-        frameContentAsPlainText(maxChars, curChild, output);
-        if (output->size() >= maxChars)
-            return; // Filled up the buffer.
-    }
-}
-
-static long long generateFrameIdentifier()
-{
-    static long long next = 0;
-    return ++next;
-}
-
-WebPluginContainerImpl* WebFrameImpl::pluginContainerFromFrame(Frame* frame)
-{
-    if (!frame)
-        return 0;
-    if (!frame->document() || !frame->document()->isPluginDocument())
-        return 0;
-    PluginDocument* pluginDocument = static_cast<PluginDocument*>(frame->document());
-    return static_cast<WebPluginContainerImpl *>(pluginDocument->pluginWidget());
-}
-
-WebPluginContainerImpl* WebFrameImpl::pluginContainerFromNode(WebCore::Frame* frame, const WebNode& node)
-{
-    WebPluginContainerImpl* pluginContainer = pluginContainerFromFrame(frame);
-    if (pluginContainer)
-        return pluginContainer;
-    return static_cast<WebPluginContainerImpl*>(node.pluginContainer());
-}
-
-// Simple class to override some of PrintContext behavior. Some of the methods
-// made virtual so that they can be overridden by ChromePluginPrintContext.
-class ChromePrintContext : public PrintContext {
-    WTF_MAKE_NONCOPYABLE(ChromePrintContext);
-public:
-    ChromePrintContext(Frame* frame)
-        : PrintContext(frame)
-        , m_printedPageWidth(0)
-    {
-    }
-
-    virtual ~ChromePrintContext() { }
-
-    virtual void begin(float width, float height)
-    {
-        ASSERT(!m_printedPageWidth);
-        m_printedPageWidth = width;
-        PrintContext::begin(m_printedPageWidth, height);
-    }
-
-    virtual void end()
-    {
-        PrintContext::end();
-    }
-
-    virtual float getPageShrink(int pageNumber) const
-    {
-        IntRect pageRect = m_pageRects[pageNumber];
-        return m_printedPageWidth / pageRect.width();
-    }
-
-    // Spools the printed page, a subrect of frame(). Skip the scale step.
-    // NativeTheme doesn't play well with scaling. Scaling is done browser side
-    // instead. Returns the scale to be applied.
-    // On Linux, we don't have the problem with NativeTheme, hence we let WebKit
-    // do the scaling and ignore the return value.
-    virtual float spoolPage(GraphicsContext& context, int pageNumber)
-    {
-        IntRect pageRect = m_pageRects[pageNumber];
-        float scale = m_printedPageWidth / pageRect.width();
-
-        context.save();
-#if OS(UNIX) && !OS(DARWIN)
-        context.scale(WebCore::FloatSize(scale, scale));
-#endif
-        context.translate(static_cast<float>(-pageRect.x()), static_cast<float>(-pageRect.y()));
-        context.clip(pageRect);
-        frame()->view()->paintContents(&context, pageRect);
-        if (context.supportsURLFragments())
-            outputLinkedDestinations(context, frame()->document(), pageRect);
-        context.restore();
-        return scale;
-    }
-
-    void spoolAllPagesWithBoundaries(GraphicsContext& graphicsContext, const FloatSize& pageSizeInPixels)
-    {
-        if (!frame()->document() || !frame()->view() || !frame()->document()->renderer())
-            return;
-
-        frame()->document()->updateLayout();
-
-        float pageHeight;
-        computePageRects(FloatRect(FloatPoint(0, 0), pageSizeInPixels), 0, 0, 1, pageHeight);
-
-        const float pageWidth = pageSizeInPixels.width();
-        size_t numPages = pageRects().size();
-        int totalHeight = numPages * (pageSizeInPixels.height() + 1) - 1;
-
-        // Fill the whole background by white.
-        graphicsContext.setFillColor(Color::white);
-        graphicsContext.fillRect(FloatRect(0, 0, pageWidth, totalHeight));
-
-        graphicsContext.save();
-
-        int currentHeight = 0;
-        for (size_t pageIndex = 0; pageIndex < numPages; pageIndex++) {
-            // Draw a line for a page boundary if this isn't the first page.
-            if (pageIndex > 0) {
-                graphicsContext.save();
-                graphicsContext.setStrokeColor(Color(0, 0, 255));
-                graphicsContext.setFillColor(Color(0, 0, 255));
-                graphicsContext.drawLine(IntPoint(0, currentHeight), IntPoint(pageWidth, currentHeight));
-                graphicsContext.restore();
-            }
-
-            graphicsContext.save();
-
-            graphicsContext.translate(0, currentHeight);
-#if !OS(UNIX) || OS(DARWIN)
-            // Account for the disabling of scaling in spoolPage. In the context
-            // of spoolAllPagesWithBoundaries the scale HAS NOT been pre-applied.
-            float scale = getPageShrink(pageIndex);
-            graphicsContext.scale(WebCore::FloatSize(scale, scale));
-#endif
-            spoolPage(graphicsContext, pageIndex);
-            graphicsContext.restore();
-
-            currentHeight += pageSizeInPixels.height() + 1;
-        }
-
-        graphicsContext.restore();
-    }
-
-    virtual void computePageRects(const FloatRect& printRect, float headerHeight, float footerHeight, float userScaleFactor, float& outPageHeight)
-    {
-        PrintContext::computePageRects(printRect, headerHeight, footerHeight, userScaleFactor, outPageHeight);
-    }
-
-    virtual int pageCount() const
-    {
-        return PrintContext::pageCount();
-    }
-
-    virtual bool shouldUseBrowserOverlays() const
-    {
-        return true;
-    }
-
-private:
-    // Set when printing.
-    float m_printedPageWidth;
-};
-
-// Simple class to override some of PrintContext behavior. This is used when
-// the frame hosts a plugin that supports custom printing. In this case, we
-// want to delegate all printing related calls to the plugin.
-class ChromePluginPrintContext : public ChromePrintContext {
-public:
-    ChromePluginPrintContext(Frame* frame, WebPluginContainerImpl* plugin, const WebPrintParams& printParams)
-        : ChromePrintContext(frame), m_plugin(plugin), m_pageCount(0), m_printParams(printParams)
-    {
-    }
-
-    virtual ~ChromePluginPrintContext() { }
-
-    virtual void begin(float width, float height)
-    {
-    }
-
-    virtual void end()
-    {
-        m_plugin->printEnd();
-    }
-
-    virtual float getPageShrink(int pageNumber) const
-    {
-        // We don't shrink the page (maybe we should ask the widget ??)
-        return 1.0;
-    }
-
-    virtual void computePageRects(const FloatRect& printRect, float headerHeight, float footerHeight, float userScaleFactor, float& outPageHeight)
-    {
-        m_printParams.printContentArea = IntRect(printRect);
-        m_pageCount = m_plugin->printBegin(m_printParams);
-    }
-
-    virtual int pageCount() const
-    {
-        return m_pageCount;
-    }
-
-    // Spools the printed page, a subrect of frame(). Skip the scale step.
-    // NativeTheme doesn't play well with scaling. Scaling is done browser side
-    // instead. Returns the scale to be applied.
-    virtual float spoolPage(GraphicsContext& context, int pageNumber)
-    {
-        m_plugin->printPage(pageNumber, &context);
-        return 1.0;
-    }
-
-    virtual bool shouldUseBrowserOverlays() const
-    {
-        return false;
-    }
-
-private:
-    // Set when printing.
-    WebPluginContainerImpl* m_plugin;
-    int m_pageCount;
-    WebPrintParams m_printParams;
-
-};
-
-static WebDataSource* DataSourceForDocLoader(DocumentLoader* loader)
-{
-    return loader ? WebDataSourceImpl::fromDocumentLoader(loader) : 0;
-}
-
-WebFrameImpl::FindMatch::FindMatch(PassRefPtr<Range> range, int ordinal)
-    : m_range(range)
-    , m_ordinal(ordinal)
-{
-}
-
-class WebFrameImpl::DeferredScopeStringMatches {
-public:
-    DeferredScopeStringMatches(WebFrameImpl* webFrame, int identifier, const WebString& searchText, const WebFindOptions& options, bool reset)
-        : m_timer(this, &DeferredScopeStringMatches::doTimeout)
-        , m_webFrame(webFrame)
-        , m_identifier(identifier)
-        , m_searchText(searchText)
-        , m_options(options)
-        , m_reset(reset)
-    {
-        m_timer.startOneShot(0.0);
-    }
-
-private:
-    void doTimeout(Timer<DeferredScopeStringMatches>*)
-    {
-        m_webFrame->callScopeStringMatches(this, m_identifier, m_searchText, m_options, m_reset);
-    }
-
-    Timer<DeferredScopeStringMatches> m_timer;
-    RefPtr<WebFrameImpl> m_webFrame;
-    int m_identifier;
-    WebString m_searchText;
-    WebFindOptions m_options;
-    bool m_reset;
-};
-
-// WebFrame -------------------------------------------------------------------
-
-int WebFrame::instanceCount()
-{
-    return frameCount;
-}
-
-WebFrame* WebFrame::frameForCurrentContext()
-{
-    v8::Handle<v8::Context> context = v8::Context::GetCurrent();
-    if (context.IsEmpty())
-        return 0;
-    return frameForContext(context);
-}
-
-WebFrame* WebFrame::frameForContext(v8::Handle<v8::Context> context)
-{ 
-   return WebFrameImpl::fromFrame(toFrameIfNotDetached(context));
-}
-
-WebFrame* WebFrame::fromFrameOwnerElement(const WebElement& element)
-{
-    return WebFrameImpl::fromFrameOwnerElement(PassRefPtr<Element>(element).get());
-}
-
-WebString WebFrameImpl::uniqueName() const
-{
-    return frame()->tree()->uniqueName();
-}
-
-WebString WebFrameImpl::assignedName() const
-{
-    return frame()->tree()->name();
-}
-
-void WebFrameImpl::setName(const WebString& name)
-{
-    frame()->tree()->setName(name);
-}
-
-long long WebFrameImpl::identifier() const
-{
-    return m_identifier;
-}
-
-WebVector<WebIconURL> WebFrameImpl::iconURLs(int iconTypesMask) const
-{
-    // The URL to the icon may be in the header. As such, only
-    // ask the loader for the icon if it's finished loading.
-    if (frame()->loader()->state() == FrameStateComplete)
-        return frame()->loader()->icon()->urlsForTypes(iconTypesMask);
-    return WebVector<WebIconURL>();
-}
-
-WebSize WebFrameImpl::scrollOffset() const
-{
-    FrameView* view = frameView();
-    if (!view)
-        return WebSize();
-    return view->scrollOffset();
-}
-
-WebSize WebFrameImpl::minimumScrollOffset() const
-{
-    FrameView* view = frameView();
-    if (!view)
-        return WebSize();
-    return toIntSize(view->minimumScrollPosition());
-}
-
-WebSize WebFrameImpl::maximumScrollOffset() const
-{
-    FrameView* view = frameView();
-    if (!view)
-        return WebSize();
-    return toIntSize(view->maximumScrollPosition());
-}
-
-void WebFrameImpl::setScrollOffset(const WebSize& offset)
-{
-    if (FrameView* view = frameView())
-        view->setScrollOffset(IntPoint(offset.width, offset.height));
-}
-
-WebSize WebFrameImpl::contentsSize() const
-{
-    return frame()->view()->contentsSize();
-}
-
-bool WebFrameImpl::hasVisibleContent() const
-{
-    return frame()->view()->visibleWidth() > 0 && frame()->view()->visibleHeight() > 0;
-}
-
-WebRect WebFrameImpl::visibleContentRect() const
-{
-    return frame()->view()->visibleContentRect();
-}
-
-bool WebFrameImpl::hasHorizontalScrollbar() const
-{
-    return frame() && frame()->view() && frame()->view()->horizontalScrollbar();
-}
-
-bool WebFrameImpl::hasVerticalScrollbar() const
-{
-    return frame() && frame()->view() && frame()->view()->verticalScrollbar();
-}
-
-WebView* WebFrameImpl::view() const
-{
-    return viewImpl();
-}
-
-WebFrame* WebFrameImpl::opener() const
-{
-    if (!frame())
-        return 0;
-    return fromFrame(frame()->loader()->opener());
-}
-
-void WebFrameImpl::setOpener(const WebFrame* webFrame)
-{
-    frame()->loader()->setOpener(webFrame ? static_cast<const WebFrameImpl*>(webFrame)->frame() : 0);
-}
-
-WebFrame* WebFrameImpl::parent() const
-{
-    if (!frame())
-        return 0;
-    return fromFrame(frame()->tree()->parent());
-}
-
-WebFrame* WebFrameImpl::top() const
-{
-    if (!frame())
-        return 0;
-    return fromFrame(frame()->tree()->top());
-}
-
-WebFrame* WebFrameImpl::firstChild() const
-{
-    if (!frame())
-        return 0;
-    return fromFrame(frame()->tree()->firstChild());
-}
-
-WebFrame* WebFrameImpl::lastChild() const
-{
-    if (!frame())
-        return 0;
-    return fromFrame(frame()->tree()->lastChild());
-}
-
-WebFrame* WebFrameImpl::nextSibling() const
-{
-    if (!frame())
-        return 0;
-    return fromFrame(frame()->tree()->nextSibling());
-}
-
-WebFrame* WebFrameImpl::previousSibling() const
-{
-    if (!frame())
-        return 0;
-    return fromFrame(frame()->tree()->previousSibling());
-}
-
-WebFrame* WebFrameImpl::traverseNext(bool wrap) const
-{
-    if (!frame())
-        return 0;
-    return fromFrame(frame()->tree()->traverseNextWithWrap(wrap));
-}
-
-WebFrame* WebFrameImpl::traversePrevious(bool wrap) const
-{
-    if (!frame())
-        return 0;
-    return fromFrame(frame()->tree()->traversePreviousWithWrap(wrap));
-}
-
-WebFrame* WebFrameImpl::findChildByName(const WebString& name) const
-{
-    if (!frame())
-        return 0;
-    return fromFrame(frame()->tree()->child(name));
-}
-
-WebFrame* WebFrameImpl::findChildByExpression(const WebString& xpath) const
-{
-    if (xpath.isEmpty())
-        return 0;
-
-    Document* document = frame()->document();
-
-    ExceptionCode ec = 0;
-    RefPtr<XPathResult> xpathResult = document->evaluate(xpath, document, 0, XPathResult::ORDERED_NODE_ITERATOR_TYPE, 0, ec);
-    if (!xpathResult)
-        return 0;
-
-    Node* node = xpathResult->iterateNext(ec);
-    if (!node || !node->isFrameOwnerElement())
-        return 0;
-    HTMLFrameOwnerElement* frameElement = toFrameOwnerElement(node);
-    return fromFrame(frameElement->contentFrame());
-}
-
-WebDocument WebFrameImpl::document() const
-{
-    if (!frame() || !frame()->document())
-        return WebDocument();
-    return WebDocument(frame()->document());
-}
-
-WebPerformance WebFrameImpl::performance() const
-{
-    if (!frame())
-        return WebPerformance();
-    return WebPerformance(frame()->document()->domWindow()->performance());
-}
-
-NPObject* WebFrameImpl::windowObject() const
-{
-    if (!frame())
-        return 0;
-    return frame()->script()->windowScriptNPObject();
-}
-
-void WebFrameImpl::bindToWindowObject(const WebString& name, NPObject* object)
-{
-    if (!frame() || !frame()->script()->canExecuteScripts(NotAboutToExecuteScript))
-        return;
-    frame()->script()->bindToWindowObject(frame(), String(name), object);
-}
-
-void WebFrameImpl::executeScript(const WebScriptSource& source)
-{
-    ASSERT(frame());
-    TextPosition position(OrdinalNumber::fromOneBasedInt(source.startLine), OrdinalNumber::first());
-    frame()->script()->executeScript(ScriptSourceCode(source.code, source.url, position));
-}
-
-void WebFrameImpl::executeScriptInIsolatedWorld(int worldID, const WebScriptSource* sourcesIn, unsigned numSources, int extensionGroup)
-{
-    ASSERT(frame());
-    ASSERT(worldID > 0);
-
-    Vector<ScriptSourceCode> sources;
-    for (unsigned i = 0; i < numSources; ++i) {
-        TextPosition position(OrdinalNumber::fromOneBasedInt(sourcesIn[i].startLine), OrdinalNumber::first());
-        sources.append(ScriptSourceCode(sourcesIn[i].code, sourcesIn[i].url, position));
-    }
-
-    frame()->script()->executeScriptInIsolatedWorld(worldID, sources, extensionGroup, 0);
-}
-
-void WebFrameImpl::setIsolatedWorldSecurityOrigin(int worldID, const WebSecurityOrigin& securityOrigin)
-{
-    ASSERT(frame());
-    DOMWrapperWorld::setIsolatedWorldSecurityOrigin(worldID, securityOrigin.get());
-}
-
-void WebFrameImpl::setIsolatedWorldContentSecurityPolicy(int worldID, const WebString& policy)
-{
-    ASSERT(frame());
-    DOMWrapperWorld::setIsolatedWorldContentSecurityPolicy(worldID, policy);
-}
-
-void WebFrameImpl::addMessageToConsole(const WebConsoleMessage& message)
-{
-    ASSERT(frame());
-
-    MessageLevel webCoreMessageLevel;
-    switch (message.level) {
-    case WebConsoleMessage::LevelDebug:
-        webCoreMessageLevel = DebugMessageLevel;
-        break;
-    case WebConsoleMessage::LevelLog:
-        webCoreMessageLevel = LogMessageLevel;
-        break;
-    case WebConsoleMessage::LevelWarning:
-        webCoreMessageLevel = WarningMessageLevel;
-        break;
-    case WebConsoleMessage::LevelError:
-        webCoreMessageLevel = ErrorMessageLevel;
-        break;
-    default:
-        ASSERT_NOT_REACHED();
-        return;
-    }
-
-    frame()->document()->addConsoleMessage(OtherMessageSource, webCoreMessageLevel, message.text);
-}
-
-void WebFrameImpl::collectGarbage()
-{
-    if (!frame())
-        return;
-    if (!frame()->settings()->isScriptEnabled())
-        return;
-    V8GCController::collectGarbage(v8::Isolate::GetCurrent());
-}
-
-bool WebFrameImpl::checkIfRunInsecureContent(const WebURL& url) const
-{
-    ASSERT(frame());
-    return frame()->loader()->mixedContentChecker()->canRunInsecureContent(frame()->document()->securityOrigin(), url);
-}
-
-v8::Handle<v8::Value> WebFrameImpl::executeScriptAndReturnValue(const WebScriptSource& source)
-{
-    ASSERT(frame());
-
-    // FIXME: This fake user gesture is required to make a bunch of pyauto
-    // tests pass. If this isn't needed in non-test situations, we should
-    // consider removing this code and changing the tests.
-    // http://code.google.com/p/chromium/issues/detail?id=86397
-    UserGestureIndicator gestureIndicator(DefinitelyProcessingNewUserGesture);
-
-    TextPosition position(OrdinalNumber::fromOneBasedInt(source.startLine), OrdinalNumber::first());
-    return frame()->script()->executeScript(ScriptSourceCode(source.code, source.url, position)).v8Value();
-}
-
-void WebFrameImpl::executeScriptInIsolatedWorld(int worldID, const WebScriptSource* sourcesIn, unsigned numSources, int extensionGroup, WebVector<v8::Local<v8::Value> >* results)
-{
-    ASSERT(frame());
-    ASSERT(worldID > 0);
-
-    Vector<ScriptSourceCode> sources;
-
-    for (unsigned i = 0; i < numSources; ++i) {
-        TextPosition position(OrdinalNumber::fromOneBasedInt(sourcesIn[i].startLine), OrdinalNumber::first());
-        sources.append(ScriptSourceCode(sourcesIn[i].code, sourcesIn[i].url, position));
-    }
-
-    if (results) {
-        Vector<ScriptValue> scriptResults;
-        frame()->script()->executeScriptInIsolatedWorld(worldID, sources, extensionGroup, &scriptResults);
-        WebVector<v8::Local<v8::Value> > v8Results(scriptResults.size());
-        for (unsigned i = 0; i < scriptResults.size(); i++)
-            v8Results[i] = v8::Local<v8::Value>::New(scriptResults[i].v8Value());
-        results->swap(v8Results);
-    } else
-        frame()->script()->executeScriptInIsolatedWorld(worldID, sources, extensionGroup, 0);
-}
-
-v8::Handle<v8::Value> WebFrameImpl::callFunctionEvenIfScriptDisabled(v8::Handle<v8::Function> function, v8::Handle<v8::Object> receiver, int argc, v8::Handle<v8::Value> argv[])
-{
-    ASSERT(frame());
-    return frame()->script()->callFunctionEvenIfScriptDisabled(function, receiver, argc, argv).v8Value();
-}
-
-v8::Local<v8::Context> WebFrameImpl::mainWorldScriptContext() const
-{
-    if (!frame())
-        return v8::Local<v8::Context>();
-    return ScriptController::mainWorldContext(frame());
-}
-
-v8::Handle<v8::Value> WebFrameImpl::createFileSystem(WebFileSystemType type, const WebString& name, const WebString& path)
-{
-    ASSERT(frame());
-    return toV8(DOMFileSystem::create(frame()->document(), name, static_cast<WebCore::FileSystemType>(type), KURL(ParsedURLString, path.utf8().data()), AsyncFileSystemChromium::create()), v8::Handle<v8::Object>(), frame()->script()->currentWorldContext()->GetIsolate());
-}
-
-v8::Handle<v8::Value> WebFrameImpl::createSerializableFileSystem(WebFileSystemType type, const WebString& name, const WebString& path)
-{
-    ASSERT(frame());
-    RefPtr<DOMFileSystem> fileSystem = DOMFileSystem::create(frame()->document(), name, static_cast<WebCore::FileSystemType>(type), KURL(ParsedURLString, path.utf8().data()), AsyncFileSystemChromium::create());
-    fileSystem->makeClonable();
-    return toV8(fileSystem.release(), v8::Handle<v8::Object>(), frame()->script()->currentWorldContext()->GetIsolate());
-}
-
-v8::Handle<v8::Value> WebFrameImpl::createFileEntry(WebFileSystemType type, const WebString& fileSystemName, const WebString& fileSystemPath, const WebString& filePath, bool isDirectory)
-{
-    ASSERT(frame());
-
-    RefPtr<DOMFileSystemBase> fileSystem = DOMFileSystem::create(frame()->document(), fileSystemName, static_cast<WebCore::FileSystemType>(type), KURL(ParsedURLString, fileSystemPath.utf8().data()), AsyncFileSystemChromium::create());
-    if (isDirectory)
-        return toV8(DirectoryEntry::create(fileSystem, filePath), v8::Handle<v8::Object>(), frame()->script()->currentWorldContext()->GetIsolate());
-    return toV8(FileEntry::create(fileSystem, filePath), v8::Handle<v8::Object>(), frame()->script()->currentWorldContext()->GetIsolate());
-}
-
-void WebFrameImpl::reload(bool ignoreCache)
-{
-    ASSERT(frame());
-    frame()->loader()->reload(ignoreCache);
-}
-
-void WebFrameImpl::reloadWithOverrideURL(const WebURL& overrideUrl, bool ignoreCache)
-{
-    ASSERT(frame());
-    frame()->loader()->reload(ignoreCache, overrideUrl);
-}
-
-void WebFrameImpl::loadRequest(const WebURLRequest& request)
-{
-    ASSERT(frame());
-    ASSERT(!request.isNull());
-    const ResourceRequest& resourceRequest = request.toResourceRequest();
-
-    if (resourceRequest.url().protocolIs("javascript")) {
-        loadJavaScriptURL(resourceRequest.url());
-        return;
-    }
-
-    frame()->loader()->load(FrameLoadRequest(frame(), resourceRequest));
-}
-
-void WebFrameImpl::loadHistoryItem(const WebHistoryItem& item)
-{
-    ASSERT(frame());
-    RefPtr<HistoryItem> historyItem = PassRefPtr<HistoryItem>(item);
-    ASSERT(historyItem);
-
-    frame()->loader()->prepareForHistoryNavigation();
-    RefPtr<HistoryItem> currentItem = frame()->loader()->history()->currentItem();
-    m_inSameDocumentHistoryLoad = currentItem && currentItem->shouldDoSameDocumentNavigationTo(historyItem.get());
-    frame()->page()->goToItem(historyItem.get());
-    m_inSameDocumentHistoryLoad = false;
-}
-
-void WebFrameImpl::loadData(const WebData& data, const WebString& mimeType, const WebString& textEncoding, const WebURL& baseURL, const WebURL& unreachableURL, bool replace)
-{
-    ASSERT(frame());
-
-    // If we are loading substitute data to replace an existing load, then
-    // inherit all of the properties of that original request.  This way,
-    // reload will re-attempt the original request.  It is essential that
-    // we only do this when there is an unreachableURL since a non-empty
-    // unreachableURL informs FrameLoader::reload to load unreachableURL
-    // instead of the currently loaded URL.
-    ResourceRequest request;
-    if (replace && !unreachableURL.isEmpty())
-        request = frame()->loader()->originalRequest();
-    request.setURL(baseURL);
-
-    FrameLoadRequest frameRequest(frame(), request, SubstituteData(data, mimeType, textEncoding, unreachableURL));
-    ASSERT(frameRequest.substituteData().isValid());
-    frame()->loader()->load(frameRequest);
-    if (replace) {
-        // Do this to force WebKit to treat the load as replacing the currently
-        // loaded page.
-        // FIXME: Can we use lock history instead?
-        frame()->loader()->setReplacing();
-    }
-}
-
-void WebFrameImpl::loadHTMLString(const WebData& data, const WebURL& baseURL, const WebURL& unreachableURL, bool replace)
-{
-    ASSERT(frame());
-    loadData(data, WebString::fromUTF8("text/html"), WebString::fromUTF8("UTF-8"), baseURL, unreachableURL, replace);
-}
-
-bool WebFrameImpl::isLoading() const
-{
-    if (!frame())
-        return false;
-    return frame()->loader()->isLoading();
-}
-
-void WebFrameImpl::stopLoading()
-{
-    if (!frame())
-        return;
-    // FIXME: Figure out what we should really do here.  It seems like a bug
-    // that FrameLoader::stopLoading doesn't call stopAllLoaders.
-    frame()->loader()->stopAllLoaders();
-    frame()->loader()->stopLoading(UnloadEventPolicyNone);
-}
-
-WebDataSource* WebFrameImpl::provisionalDataSource() const
-{
-    ASSERT(frame());
-
-    // We regard the policy document loader as still provisional.
-    DocumentLoader* documentLoader = frame()->loader()->provisionalDocumentLoader();
-    if (!documentLoader)
-        documentLoader = frame()->loader()->policyDocumentLoader();
-
-    return DataSourceForDocLoader(documentLoader);
-}
-
-WebDataSource* WebFrameImpl::dataSource() const
-{
-    ASSERT(frame());
-    return DataSourceForDocLoader(frame()->loader()->documentLoader());
-}
-
-WebHistoryItem WebFrameImpl::previousHistoryItem() const
-{
-    ASSERT(frame());
-    // We use the previous item here because documentState (filled-out forms)
-    // only get saved to history when it becomes the previous item.  The caller
-    // is expected to query the history item after a navigation occurs, after
-    // the desired history item has become the previous entry.
-    return WebHistoryItem(frame()->loader()->history()->previousItem());
-}
-
-WebHistoryItem WebFrameImpl::currentHistoryItem() const
-{
-    ASSERT(frame());
-
-    // We're shutting down.
-    if (!frame()->loader()->activeDocumentLoader())
-        return WebHistoryItem();
-
-    // If we are still loading, then we don't want to clobber the current
-    // history item as this could cause us to lose the scroll position and
-    // document state.  However, it is OK for new navigations.
-    // FIXME: Can we make this a plain old getter, instead of worrying about
-    // clobbering here?
-    if (!m_inSameDocumentHistoryLoad && (frame()->loader()->loadType() == FrameLoadTypeStandard
-        || !frame()->loader()->activeDocumentLoader()->isLoadingInAPISense()))
-        frame()->loader()->history()->saveDocumentAndScrollState();
-
-    return WebHistoryItem(frame()->page()->backForward()->currentItem());
-}
-
-void WebFrameImpl::enableViewSourceMode(bool enable)
-{
-    if (frame())
-        frame()->setInViewSourceMode(enable);
-}
-
-bool WebFrameImpl::isViewSourceModeEnabled() const
-{
-    if (!frame())
-        return false;
-    return frame()->inViewSourceMode();
-}
-
-void WebFrameImpl::setReferrerForRequest(WebURLRequest& request, const WebURL& referrerURL)
-{
-    String referrer = referrerURL.isEmpty() ? frame()->loader()->outgoingReferrer() : String(referrerURL.spec().utf16());
-    referrer = SecurityPolicy::generateReferrerHeader(frame()->document()->referrerPolicy(), request.url(), referrer);
-    if (referrer.isEmpty())
-        return;
-    request.setHTTPHeaderField(WebString::fromUTF8("Referer"), referrer);
-}
-
-void WebFrameImpl::dispatchWillSendRequest(WebURLRequest& request)
-{
-    ResourceResponse response;
-    frame()->loader()->client()->dispatchWillSendRequest(0, 0, request.toMutableResourceRequest(), response);
-}
-
-WebURLLoader* WebFrameImpl::createAssociatedURLLoader(const WebURLLoaderOptions& options)
-{
-    return new AssociatedURLLoader(this, options);
-}
-
-unsigned WebFrameImpl::unloadListenerCount() const
-{
-    return frame()->document()->domWindow()->pendingUnloadEventListeners();
-}
-
-bool WebFrameImpl::willSuppressOpenerInNewFrame() const
-{
-    return frame()->loader()->suppressOpenerInNewFrame();
-}
-
-void WebFrameImpl::replaceSelection(const WebString& text)
-{
-    bool selectReplacement = false;
-    bool smartReplace = true;
-    frame()->editor()->replaceSelectionWithText(text, selectReplacement, smartReplace);
-}
-
-void WebFrameImpl::insertText(const WebString& text)
-{
-    if (frame()->editor()->hasComposition())
-        frame()->editor()->confirmComposition(text);
-    else
-        frame()->editor()->insertText(text, 0);
-}
-
-void WebFrameImpl::setMarkedText(const WebString& text, unsigned location, unsigned length)
-{
-    Vector<CompositionUnderline> decorations;
-    frame()->editor()->setComposition(text, decorations, location, length);
-}
-
-void WebFrameImpl::unmarkText()
-{
-    frame()->editor()->cancelComposition();
-}
-
-bool WebFrameImpl::hasMarkedText() const
-{
-    return frame()->editor()->hasComposition();
-}
-
-WebRange WebFrameImpl::markedRange() const
-{
-    return frame()->editor()->compositionRange();
-}
-
-bool WebFrameImpl::firstRectForCharacterRange(unsigned location, unsigned length, WebRect& rect) const
-{
-    if ((location + length < location) && (location + length))
-        length = 0;
-
-    RefPtr<Range> range = TextIterator::rangeFromLocationAndLength(frame()->selection()->rootEditableElementOrDocumentElement(), location, length);
-    if (!range)
-        return false;
-    IntRect intRect = frame()->editor()->firstRectForRange(range.get());
-    rect = WebRect(intRect);
-    rect = frame()->view()->contentsToWindow(rect);
-    return true;
-}
-
-size_t WebFrameImpl::characterIndexForPoint(const WebPoint& webPoint) const
-{
-    if (!frame())
-        return notFound;
-
-    IntPoint point = frame()->view()->windowToContents(webPoint);
-    HitTestResult result = frame()->eventHandler()->hitTestResultAtPoint(point, HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::DisallowShadowContent);
-    RefPtr<Range> range = frame()->rangeForPoint(result.roundedPointInInnerNodeFrame());
-    if (!range)
-        return notFound;
-
-    size_t location, length;
-    TextIterator::getLocationAndLengthFromRange(frame()->selection()->rootEditableElementOrDocumentElement(), range.get(), location, length);
-    return location;
-}
-
-bool WebFrameImpl::executeCommand(const WebString& name, const WebNode& node)
-{
-    ASSERT(frame());
-
-    if (name.length() <= 2)
-        return false;
-
-    // Since we don't have NSControl, we will convert the format of command
-    // string and call the function on Editor directly.
-    String command = name;
-
-    // Make sure the first letter is upper case.
-    command.replace(0, 1, command.substring(0, 1).upper());
-
-    // Remove the trailing ':' if existing.
-    if (command[command.length() - 1] == UChar(':'))
-        command = command.substring(0, command.length() - 1);
-
-    WebPluginContainerImpl* pluginContainer = pluginContainerFromNode(frame(), node);
-    if (pluginContainer && pluginContainer->executeEditCommand(name))
-        return true;
-
-    bool result = true;
-
-    // Specially handling commands that Editor::execCommand does not directly
-    // support.
-    if (command == "DeleteToEndOfParagraph") {
-        if (!frame()->editor()->deleteWithDirection(DirectionForward, ParagraphBoundary, true, false))
-            frame()->editor()->deleteWithDirection(DirectionForward, CharacterGranularity, true, false);
-    } else if (command == "Indent")
-        frame()->editor()->indent();
-    else if (command == "Outdent")
-        frame()->editor()->outdent();
-    else if (command == "DeleteBackward")
-        result = frame()->editor()->command(AtomicString("BackwardDelete")).execute();
-    else if (command == "DeleteForward")
-        result = frame()->editor()->command(AtomicString("ForwardDelete")).execute();
-    else if (command == "AdvanceToNextMisspelling") {
-        // Wee need to pass false here or else the currently selected word will never be skipped.
-        frame()->editor()->advanceToNextMisspelling(false);
-    } else if (command == "ToggleSpellPanel")
-        frame()->editor()->showSpellingGuessPanel();
-    else
-        result = frame()->editor()->command(command).execute();
-    return result;
-}
-
-bool WebFrameImpl::executeCommand(const WebString& name, const WebString& value, const WebNode& node)
-{
-    ASSERT(frame());
-    String webName = name;
-
-    WebPluginContainerImpl* pluginContainer = pluginContainerFromNode(frame(), node);
-    if (pluginContainer && pluginContainer->executeEditCommand(name, value))
-        return true;
-
-    // moveToBeginningOfDocument and moveToEndfDocument are only handled by WebKit for editable nodes.
-    if (!frame()->editor()->canEdit() && webName == "moveToBeginningOfDocument")
-        return viewImpl()->propagateScroll(ScrollUp, ScrollByDocument);
-
-    if (!frame()->editor()->canEdit() && webName == "moveToEndOfDocument")
-        return viewImpl()->propagateScroll(ScrollDown, ScrollByDocument);
-
-    return frame()->editor()->command(webName).execute(value);
-}
-
-bool WebFrameImpl::isCommandEnabled(const WebString& name) const
-{
-    ASSERT(frame());
-    return frame()->editor()->command(name).isEnabled();
-}
-
-void WebFrameImpl::enableContinuousSpellChecking(bool enable)
-{
-    if (enable == isContinuousSpellCheckingEnabled())
-        return;
-    frame()->editor()->toggleContinuousSpellChecking();
-}
-
-bool WebFrameImpl::isContinuousSpellCheckingEnabled() const
-{
-    return frame()->editor()->isContinuousSpellCheckingEnabled();
-}
-
-void WebFrameImpl::requestTextChecking(const WebElement& webElement)
-{
-    if (webElement.isNull())
-        return;
-    RefPtr<Range> rangeToCheck = rangeOfContents(const_cast<Element*>(webElement.constUnwrap<Element>()));
-    frame()->editor()->spellChecker()->requestCheckingFor(SpellCheckRequest::create(TextCheckingTypeSpelling | TextCheckingTypeGrammar, TextCheckingProcessBatch, rangeToCheck, rangeToCheck));
-}
-
-void WebFrameImpl::replaceMisspelledRange(const WebString& text)
-{
-    // If this caret selection has two or more markers, this function replace the range covered by the first marker with the specified word as Microsoft Word does.
-    if (pluginContainerFromFrame(frame()))
-        return;
-    RefPtr<Range> caretRange = frame()->selection()->toNormalizedRange();
-    if (!caretRange)
-        return;
-    Vector<DocumentMarker*> markers = frame()->document()->markers()->markersInRange(caretRange.get(), DocumentMarker::Spelling | DocumentMarker::Grammar);
-    if (markers.size() < 1 || markers[0]->startOffset() >= markers[0]->endOffset())
-        return;
-    RefPtr<Range> markerRange = Range::create(caretRange->ownerDocument(), caretRange->startContainer(), markers[0]->startOffset(), caretRange->endContainer(), markers[0]->endOffset());
-    if (!markerRange)
-        return;
-    if (!frame()->selection()->shouldChangeSelection(markerRange.get()))
-        return;
-    frame()->selection()->setSelection(markerRange.get(), CharacterGranularity);
-    frame()->editor()->replaceSelectionWithText(text, false, false);
-}
-
-void WebFrameImpl::removeSpellingMarkers()
-{
-    frame()->document()->markers()->removeMarkers(DocumentMarker::Spelling | DocumentMarker::Grammar);
-}
-
-bool WebFrameImpl::hasSelection() const
-{
-    WebPluginContainerImpl* pluginContainer = pluginContainerFromFrame(frame());
-    if (pluginContainer)
-        return pluginContainer->plugin()->hasSelection();
-
-    // frame()->selection()->isNone() never returns true.
-    return (frame()->selection()->start() != frame()->selection()->end());
-}
-
-WebRange WebFrameImpl::selectionRange() const
-{
-    return frame()->selection()->toNormalizedRange();
-}
-
-WebString WebFrameImpl::selectionAsText() const
-{
-    WebPluginContainerImpl* pluginContainer = pluginContainerFromFrame(frame());
-    if (pluginContainer)
-        return pluginContainer->plugin()->selectionAsText();
-
-    RefPtr<Range> range = frame()->selection()->toNormalizedRange();
-    if (!range)
-        return WebString();
-
-    String text = range->text();
-#if OS(WINDOWS)
-    replaceNewlinesWithWindowsStyleNewlines(text);
-#endif
-    replaceNBSPWithSpace(text);
-    return text;
-}
-
-WebString WebFrameImpl::selectionAsMarkup() const
-{
-    WebPluginContainerImpl* pluginContainer = pluginContainerFromFrame(frame());
-    if (pluginContainer)
-        return pluginContainer->plugin()->selectionAsMarkup();
-
-    RefPtr<Range> range = frame()->selection()->toNormalizedRange();
-    if (!range)
-        return WebString();
-
-    return createMarkup(range.get(), 0, AnnotateForInterchange, false, ResolveNonLocalURLs);
-}
-
-void WebFrameImpl::selectWordAroundPosition(Frame* frame, VisiblePosition position)
-{
-    VisibleSelection selection(position);
-    selection.expandUsingGranularity(WordGranularity);
-
-    if (frame->selection()->shouldChangeSelection(selection)) {
-        TextGranularity granularity = selection.isRange() ? WordGranularity : CharacterGranularity;
-        frame->selection()->setSelection(selection, granularity);
-    }
-}
-
-bool WebFrameImpl::selectWordAroundCaret()
-{
-    FrameSelection* selection = frame()->selection();
-    ASSERT(!selection->isNone());
-    if (selection->isNone() || selection->isRange())
-        return false;
-    selectWordAroundPosition(frame(), selection->selection().visibleStart());
-    return true;
-}
-
-void WebFrameImpl::selectRange(const WebPoint& base, const WebPoint& extent)
-{
-    moveRangeSelection(base, extent);
-}
-
-void WebFrameImpl::selectRange(const WebRange& webRange)
-{
-    if (RefPtr<Range> range = static_cast<PassRefPtr<Range> >(webRange))
-        frame()->selection()->setSelectedRange(range.get(), WebCore::VP_DEFAULT_AFFINITY, false);
-}
-
-void WebFrameImpl::moveCaretSelectionTowardsWindowPoint(const WebPoint& point)
-{
-    moveCaretSelection(point);
-}
-
-void WebFrameImpl::moveRangeSelection(const WebPoint& base, const WebPoint& extent)
-{
-    FrameSelection* selection = frame()->selection();
-    if (!selection)
-        return;
-
-    VisiblePosition basePosition = visiblePositionForWindowPoint(base);
-    VisiblePosition extentPosition = visiblePositionForWindowPoint(extent);
-    VisibleSelection newSelection = VisibleSelection(basePosition, extentPosition);
-    if (frame()->selection()->shouldChangeSelection(newSelection))
-        frame()->selection()->setSelection(newSelection, CharacterGranularity);
-}
-
-void WebFrameImpl::moveCaretSelection(const WebPoint& point)
-{
-    Element* editable = frame()->selection()->rootEditableElement();
-    if (!editable)
-        return;
-
-    VisiblePosition position = visiblePositionForWindowPoint(point);
-    if (frame()->selection()->shouldChangeSelection(position))
-        frame()->selection()->moveTo(position, UserTriggered);
-}
-
-VisiblePosition WebFrameImpl::visiblePositionForWindowPoint(const WebPoint& point)
-{
-    FloatPoint unscaledPoint(point);
-    unscaledPoint.scale(1 / view()->pageScaleFactor(), 1 / view()->pageScaleFactor());
-
-    HitTestRequest request = HitTestRequest::Move | HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::IgnoreClipping | HitTestRequest::DisallowShadowContent;
-    HitTestResult result(frame()->view()->windowToContents(roundedIntPoint(unscaledPoint)));
-    frame()->document()->renderView()->layer()->hitTest(request, result);
-
-    Node* node = result.targetNode();
-    if (!node)
-        return VisiblePosition();
-    return frame()->selection()->selection().visiblePositionRespectingEditingBoundary(result.localPoint(), node);
-}
-
-int WebFrameImpl::printBegin(const WebPrintParams& printParams, const WebNode& constrainToNode, bool* useBrowserOverlays)
-{
-    ASSERT(!frame()->document()->isFrameSet());
-    WebPluginContainerImpl* pluginContainer = 0;
-    if (constrainToNode.isNull()) {
-        // If this is a plugin document, check if the plugin supports its own
-        // printing. If it does, we will delegate all printing to that.
-        pluginContainer = pluginContainerFromFrame(frame());
-    } else {
-        // We only support printing plugin nodes for now.
-        pluginContainer = static_cast<WebPluginContainerImpl*>(constrainToNode.pluginContainer());
-    }
-
-    if (pluginContainer && pluginContainer->supportsPaginatedPrint())
-        m_printContext = adoptPtr(new ChromePluginPrintContext(frame(), pluginContainer, printParams));
-    else
-        m_printContext = adoptPtr(new ChromePrintContext(frame()));
-
-    FloatRect rect(0, 0, static_cast<float>(printParams.printContentArea.width), static_cast<float>(printParams.printContentArea.height));
-    m_printContext->begin(rect.width(), rect.height());
-    float pageHeight;
-    // We ignore the overlays calculation for now since they are generated in the
-    // browser. pageHeight is actually an output parameter.
-    m_printContext->computePageRects(rect, 0, 0, 1.0, pageHeight);
-    if (useBrowserOverlays)
-        *useBrowserOverlays = m_printContext->shouldUseBrowserOverlays();
-
-    return m_printContext->pageCount();
-}
-
-float WebFrameImpl::getPrintPageShrink(int page)
-{
-    ASSERT(m_printContext && page >= 0);
-    return m_printContext->getPageShrink(page);
-}
-
-float WebFrameImpl::printPage(int page, WebCanvas* canvas)
-{
-#if ENABLE(PRINTING)
-    ASSERT(m_printContext && page >= 0 && frame() && frame()->document());
-
-    GraphicsContext graphicsContext(canvas);
-    graphicsContext.setPrinting(true);
-    return m_printContext->spoolPage(graphicsContext, page);
-#else
-    return 0;
-#endif
-}
-
-void WebFrameImpl::printEnd()
-{
-    ASSERT(m_printContext);
-    m_printContext->end();
-    m_printContext.clear();
-}
-
-bool WebFrameImpl::isPrintScalingDisabledForPlugin(const WebNode& node)
-{
-    WebPluginContainerImpl* pluginContainer =  node.isNull() ? pluginContainerFromFrame(frame()) : static_cast<WebPluginContainerImpl*>(node.pluginContainer());
-
-    if (!pluginContainer || !pluginContainer->supportsPaginatedPrint())
-        return false;
-
-    return pluginContainer->isPrintScalingDisabled();
-}
-
-bool WebFrameImpl::hasCustomPageSizeStyle(int pageIndex)
-{
-    return frame()->document()->styleForPage(pageIndex)->pageSizeType() != PAGE_SIZE_AUTO;
-}
-
-bool WebFrameImpl::isPageBoxVisible(int pageIndex)
-{
-    return frame()->document()->isPageBoxVisible(pageIndex);
-}
-
-void WebFrameImpl::pageSizeAndMarginsInPixels(int pageIndex, WebSize& pageSize, int& marginTop, int& marginRight, int& marginBottom, int& marginLeft)
-{
-    IntSize size = pageSize;
-    frame()->document()->pageSizeAndMarginsInPixels(pageIndex, size, marginTop, marginRight, marginBottom, marginLeft);
-    pageSize = size;
-}
-
-WebString WebFrameImpl::pageProperty(const WebString& propertyName, int pageIndex)
-{
-    ASSERT(m_printContext);
-    return m_printContext->pageProperty(frame(), propertyName.utf8().data(), pageIndex);
-}
-
-bool WebFrameImpl::find(int identifier, const WebString& searchText, const WebFindOptions& options, bool wrapWithinFrame, WebRect* selectionRect)
-{
-    if (!frame() || !frame()->page())
-        return false;
-
-    WebFrameImpl* mainFrameImpl = viewImpl()->mainFrameImpl();
-
-    if (!options.findNext)
-        frame()->page()->unmarkAllTextMatches();
-    else
-        setMarkerActive(m_activeMatch.get(), false);
-
-    if (m_activeMatch && m_activeMatch->ownerDocument() != frame()->document())
-        m_activeMatch = 0;
-
-    // If the user has selected something since the last Find operation we want
-    // to start from there. Otherwise, we start searching from where the last Find
-    // operation left off (either a Find or a FindNext operation).
-    VisibleSelection selection(frame()->selection()->selection());
-    bool activeSelection = !selection.isNone();
-    if (activeSelection) {
-        m_activeMatch = selection.firstRange().get();
-        frame()->selection()->clear();
-    }
-
-    ASSERT(frame() && frame()->view());
-    const FindOptions findOptions = (options.forward ? 0 : Backwards)
-        | (options.matchCase ? 0 : CaseInsensitive)
-        | (wrapWithinFrame ? WrapAround : 0)
-        | (!options.findNext ? StartInSelection : 0);
-    m_activeMatch = frame()->editor()->findStringAndScrollToVisible(searchText, m_activeMatch.get(), findOptions);
-
-    if (!m_activeMatch) {
-        // If we're finding next the next active match might not be in the current frame.
-        // In this case we don't want to clear the matches cache.
-        if (!options.findNext)
-            clearFindMatchesCache();
-        invalidateArea(InvalidateAll);
-        return false;
-    }
-
-#if OS(ANDROID)
-    viewImpl()->zoomToFindInPageRect(frameView()->contentsToWindow(enclosingIntRect(RenderObject::absoluteBoundingBoxRectForRange(m_activeMatch.get()))));
-#endif
-
-    setMarkerActive(m_activeMatch.get(), true);
-    WebFrameImpl* oldActiveFrame = mainFrameImpl->m_currentActiveMatchFrame;
-    mainFrameImpl->m_currentActiveMatchFrame = this;
-
-    // Make sure no node is focused. See http://crbug.com/38700.
-    frame()->document()->setFocusedNode(0);
-
-    if (!options.findNext || activeSelection) {
-        // This is either a Find operation or a Find-next from a new start point
-        // due to a selection, so we set the flag to ask the scoping effort
-        // to find the active rect for us and report it back to the UI.
-        m_locatingActiveRect = true;
-    } else {
-        if (oldActiveFrame != this) {
-            if (options.forward)
-                m_activeMatchIndexInCurrentFrame = 0;
-            else
-                m_activeMatchIndexInCurrentFrame = m_lastMatchCount - 1;
-        } else {
-            if (options.forward)
-                ++m_activeMatchIndexInCurrentFrame;
-            else
-                --m_activeMatchIndexInCurrentFrame;
-
-            if (m_activeMatchIndexInCurrentFrame + 1 > m_lastMatchCount)
-                m_activeMatchIndexInCurrentFrame = 0;
-            if (m_activeMatchIndexInCurrentFrame == -1)
-                m_activeMatchIndexInCurrentFrame = m_lastMatchCount - 1;
-        }
-        if (selectionRect) {
-            *selectionRect = frameView()->contentsToWindow(m_activeMatch->boundingBox());
-            reportFindInPageSelection(*selectionRect, m_activeMatchIndexInCurrentFrame + 1, identifier);
-        }
-    }
-
-    return true;
-}
-
-void WebFrameImpl::stopFinding(bool clearSelection)
-{
-    if (!clearSelection)
-        setFindEndstateFocusAndSelection();
-    cancelPendingScopingEffort();
-
-    // Remove all markers for matches found and turn off the highlighting.
-    frame()->document()->markers()->removeMarkers(DocumentMarker::TextMatch);
-    frame()->editor()->setMarkedTextMatchesAreHighlighted(false);
-    clearFindMatchesCache();
-
-    // Let the frame know that we don't want tickmarks or highlighting anymore.
-    invalidateArea(InvalidateAll);
-}
-
-void WebFrameImpl::scopeStringMatches(int identifier, const WebString& searchText, const WebFindOptions& options, bool reset)
-{
-    if (reset) {
-        // This is a brand new search, so we need to reset everything.
-        // Scoping is just about to begin.
-        m_scopingInProgress = true;
-
-        // Need to keep the current identifier locally in order to finish the
-        // request in case the frame is detached during the process.
-        m_findRequestIdentifier = identifier;
-
-        // Clear highlighting for this frame.
-        if (frame() && frame()->page() && frame()->editor()->markedTextMatchesAreHighlighted())
-            frame()->page()->unmarkAllTextMatches();
-
-        // Clear the tickmarks and results cache.
-        clearFindMatchesCache();
-
-        // Clear the counters from last operation.
-        m_lastMatchCount = 0;
-        m_nextInvalidateAfter = 0;
-
-        m_resumeScopingFromRange = 0;
-
-        // The view might be null on detached frames.
-        if (frame() && frame()->page())
-            viewImpl()->mainFrameImpl()->m_framesScopingCount++;
-
-        // Now, defer scoping until later to allow find operation to finish quickly.
-        scopeStringMatchesSoon(identifier, searchText, options, false); // false means just reset, so don't do it again.
-        return;
-    }
-
-    if (!shouldScopeMatches(searchText)) {
-        // Note that we want to defer the final update when resetting even if shouldScopeMatches returns false.
-        // This is done in order to prevent sending a final message based only on the results of the first frame
-        // since m_framesScopingCount would be 0 as other frames have yet to reset.
-        finishCurrentScopingEffort(identifier);
-        return;
-    }
-
-    WebFrameImpl* mainFrameImpl = viewImpl()->mainFrameImpl();
-    RefPtr<Range> searchRange(rangeOfContents(frame()->document()));
-
-    Node* originalEndContainer = searchRange->endContainer();
-    int originalEndOffset = searchRange->endOffset();
-
-    ExceptionCode ec = 0, ec2 = 0;
-    if (m_resumeScopingFromRange) {
-        // This is a continuation of a scoping operation that timed out and didn't
-        // complete last time around, so we should start from where we left off.
-        searchRange->setStart(m_resumeScopingFromRange->startContainer(),
-                              m_resumeScopingFromRange->startOffset(ec2) + 1,
-                              ec);
-        if (ec || ec2) {
-            if (ec2) // A non-zero |ec| happens when navigating during search.
-                ASSERT_NOT_REACHED();
-            return;
-        }
-    }
-
-    // This timeout controls how long we scope before releasing control.  This
-    // value does not prevent us from running for longer than this, but it is
-    // periodically checked to see if we have exceeded our allocated time.
-    const double maxScopingDuration = 0.1; // seconds
-
-    int matchCount = 0;
-    bool timedOut = false;
-    double startTime = currentTime();
-    do {
-        // Find next occurrence of the search string.
-        // FIXME: (http://b/1088245) This WebKit operation may run for longer
-        // than the timeout value, and is not interruptible as it is currently
-        // written. We may need to rewrite it with interruptibility in mind, or
-        // find an alternative.
-        RefPtr<Range> resultRange(findPlainText(searchRange.get(),
-                                                searchText,
-                                                options.matchCase ? 0 : CaseInsensitive));
-        if (resultRange->collapsed(ec)) {
-            if (!resultRange->startContainer()->isInShadowTree())
-                break;
-
-            searchRange->setStartAfter(
-                resultRange->startContainer()->deprecatedShadowAncestorNode(), ec);
-            searchRange->setEnd(originalEndContainer, originalEndOffset, ec);
-            continue;
-        }
-
-        ++matchCount;
-
-        // Catch a special case where Find found something but doesn't know what
-        // the bounding box for it is. In this case we set the first match we find
-        // as the active rect.
-        IntRect resultBounds = resultRange->boundingBox();
-        IntRect activeSelectionRect;
-        if (m_locatingActiveRect) {
-            activeSelectionRect = m_activeMatch.get() ?
-                m_activeMatch->boundingBox() : resultBounds;
-        }
-
-        // If the Find function found a match it will have stored where the
-        // match was found in m_activeSelectionRect on the current frame. If we
-        // find this rect during scoping it means we have found the active
-        // tickmark.
-        bool foundActiveMatch = false;
-        if (m_locatingActiveRect && (activeSelectionRect == resultBounds)) {
-            // We have found the active tickmark frame.
-            mainFrameImpl->m_currentActiveMatchFrame = this;
-            foundActiveMatch = true;
-            // We also know which tickmark is active now.
-            m_activeMatchIndexInCurrentFrame = matchCount - 1;
-            // To stop looking for the active tickmark, we set this flag.
-            m_locatingActiveRect = false;
-
-            // Notify browser of new location for the selected rectangle.
-            reportFindInPageSelection(
-                frameView()->contentsToWindow(resultBounds),
-                m_activeMatchIndexInCurrentFrame + 1,
-                identifier);
-        }
-
-        addMarker(resultRange.get(), foundActiveMatch);
-
-        m_findMatchesCache.append(FindMatch(resultRange.get(), m_lastMatchCount + matchCount));
-
-        // Set the new start for the search range to be the end of the previous
-        // result range. There is no need to use a VisiblePosition here,
-        // since findPlainText will use a TextIterator to go over the visible
-        // text nodes.
-        searchRange->setStart(resultRange->endContainer(ec), resultRange->endOffset(ec), ec);
-
-        Node* shadowTreeRoot = searchRange->shadowRoot();
-        if (searchRange->collapsed(ec) && shadowTreeRoot)
-            searchRange->setEnd(shadowTreeRoot, shadowTreeRoot->childNodeCount(), ec);
-
-        m_resumeScopingFromRange = resultRange;
-        timedOut = (currentTime() - startTime) >= maxScopingDuration;
-    } while (!timedOut);
-
-    // Remember what we search for last time, so we can skip searching if more
-    // letters are added to the search string (and last outcome was 0).
-    m_lastSearchString = searchText;
-
-    if (matchCount > 0) {
-        frame()->editor()->setMarkedTextMatchesAreHighlighted(true);
-
-        m_lastMatchCount += matchCount;
-
-        // Let the mainframe know how much we found during this pass.
-        mainFrameImpl->increaseMatchCount(matchCount, identifier);
-    }
-
-    if (timedOut) {
-        // If we found anything during this pass, we should redraw. However, we
-        // don't want to spam too much if the page is extremely long, so if we
-        // reach a certain point we start throttling the redraw requests.
-        if (matchCount > 0)
-            invalidateIfNecessary();
-
-        // Scoping effort ran out of time, lets ask for another time-slice.
-        scopeStringMatchesSoon(
-            identifier,
-            searchText,
-            options,
-            false); // don't reset.
-        return; // Done for now, resume work later.
-    }
-
-    finishCurrentScopingEffort(identifier);
-}
-
-void WebFrameImpl::flushCurrentScopingEffort(int identifier)
-{
-    if (!frame() || !frame()->page())
-        return;
-
-    WebFrameImpl* mainFrameImpl = viewImpl()->mainFrameImpl();
-
-    // This frame has no further scoping left, so it is done. Other frames might,
-    // of course, continue to scope matches.
-    mainFrameImpl->m_framesScopingCount--;
-
-    // If this is the last frame to finish scoping we need to trigger the final
-    // update to be sent.
-    if (!mainFrameImpl->m_framesScopingCount)
-        mainFrameImpl->increaseMatchCount(0, identifier);
-}
-
-void WebFrameImpl::finishCurrentScopingEffort(int identifier)
-{
-    flushCurrentScopingEffort(identifier);
-
-    m_scopingInProgress = false;
-    m_lastFindRequestCompletedWithNoMatches = !m_lastMatchCount;
-
-    // This frame is done, so show any scrollbar tickmarks we haven't drawn yet.
-    invalidateArea(InvalidateScrollbar);
-}
-
-void WebFrameImpl::cancelPendingScopingEffort()
-{
-    deleteAllValues(m_deferredScopingWork);
-    m_deferredScopingWork.clear();
-
-    m_activeMatchIndexInCurrentFrame = -1;
-
-    // Last request didn't complete.
-    if (m_scopingInProgress)
-        m_lastFindRequestCompletedWithNoMatches = false;
-
-    m_scopingInProgress = false;
-}
-
-void WebFrameImpl::increaseMatchCount(int count, int identifier)
-{
-    // This function should only be called on the mainframe.
-    ASSERT(!parent());
-
-    if (count)
-        ++m_findMatchMarkersVersion;
-
-    m_totalMatchCount += count;
-
-    // Update the UI with the latest findings.
-    if (client())
-        client()->reportFindInPageMatchCount(identifier, m_totalMatchCount, !m_framesScopingCount);
-}
-
-void WebFrameImpl::reportFindInPageSelection(const WebRect& selectionRect, int activeMatchOrdinal, int identifier)
-{
-    // Update the UI with the latest selection rect.
-    if (client())
-        client()->reportFindInPageSelection(identifier, ordinalOfFirstMatchForFrame(this) + activeMatchOrdinal, selectionRect);
-}
-
-void WebFrameImpl::resetMatchCount()
-{
-    if (m_totalMatchCount > 0)
-        ++m_findMatchMarkersVersion;
-
-    m_totalMatchCount = 0;
-    m_framesScopingCount = 0;
-}
-
-void WebFrameImpl::sendOrientationChangeEvent(int orientation)
-{
-#if ENABLE(ORIENTATION_EVENTS)
-    if (frame())
-        frame()->sendOrientationChangeEvent(orientation);
-#endif
-}
-
-void WebFrameImpl::dispatchMessageEventWithOriginCheck(const WebSecurityOrigin& intendedTargetOrigin, const WebDOMEvent& event)
-{
-    ASSERT(!event.isNull());
-    frame()->document()->domWindow()->dispatchMessageEventWithOriginCheck(intendedTargetOrigin.get(), event, 0);
-}
-
-int WebFrameImpl::findMatchMarkersVersion() const
-{
-    ASSERT(!parent());
-    return m_findMatchMarkersVersion;
-}
-
-void WebFrameImpl::clearFindMatchesCache()
-{
-    if (!m_findMatchesCache.isEmpty())
-        viewImpl()->mainFrameImpl()->m_findMatchMarkersVersion++;
-
-    m_findMatchesCache.clear();
-    m_findMatchRectsAreValid = false;
-}
-
-bool WebFrameImpl::isActiveMatchFrameValid() const
-{
-    WebFrameImpl* mainFrameImpl = viewImpl()->mainFrameImpl();
-    WebFrameImpl* activeMatchFrame = mainFrameImpl->activeMatchFrame();
-    return activeMatchFrame && activeMatchFrame->m_activeMatch && activeMatchFrame->frame()->tree()->isDescendantOf(mainFrameImpl->frame());
-}
-
-void WebFrameImpl::updateFindMatchRects()
-{
-    IntSize currentContentsSize = contentsSize();
-    if (m_contentsSizeForCurrentFindMatchRects != currentContentsSize) {
-        m_contentsSizeForCurrentFindMatchRects = currentContentsSize;
-        m_findMatchRectsAreValid = false;
-    }
-
-    size_t deadMatches = 0;
-    for (Vector<FindMatch>::iterator it = m_findMatchesCache.begin(); it != m_findMatchesCache.end(); ++it) {
-        if (!it->m_range->boundaryPointsValid() || !it->m_range->startContainer()->inDocument())
-            it->m_rect = FloatRect();
-        else if (!m_findMatchRectsAreValid)
-            it->m_rect = findInPageRectFromRange(it->m_range.get());
-
-        if (it->m_rect.isEmpty())
-            ++deadMatches;
-    }
-
-    // Remove any invalid matches from the cache.
-    if (deadMatches) {
-        Vector<FindMatch> filteredMatches;
-        filteredMatches.reserveCapacity(m_findMatchesCache.size() - deadMatches);
-
-        for (Vector<FindMatch>::const_iterator it = m_findMatchesCache.begin(); it != m_findMatchesCache.end(); ++it)
-            if (!it->m_rect.isEmpty())
-                filteredMatches.append(*it);
-
-        m_findMatchesCache.swap(filteredMatches);
-    }
-
-    // Invalidate the rects in child frames. Will be updated later during traversal.
-    if (!m_findMatchRectsAreValid)
-        for (WebFrame* child = firstChild(); child; child = child->nextSibling())
-            static_cast<WebFrameImpl*>(child)->m_findMatchRectsAreValid = false;
-
-    m_findMatchRectsAreValid = true;
-}
-
-WebFloatRect WebFrameImpl::activeFindMatchRect()
-{
-    ASSERT(!parent());
-
-    if (!isActiveMatchFrameValid())
-        return WebFloatRect();
-
-    return WebFloatRect(findInPageRectFromRange(m_currentActiveMatchFrame->m_activeMatch.get()));
-}
-
-void WebFrameImpl::findMatchRects(WebVector<WebFloatRect>& outputRects)
-{
-    ASSERT(!parent());
-
-    Vector<WebFloatRect> matchRects;
-    for (WebFrameImpl* frame = this; frame; frame = static_cast<WebFrameImpl*>(frame->traverseNext(false)))
-        frame->appendFindMatchRects(matchRects);
-
-    outputRects = matchRects;
-}
-
-void WebFrameImpl::appendFindMatchRects(Vector<WebFloatRect>& frameRects)
-{
-    updateFindMatchRects();
-    frameRects.reserveCapacity(frameRects.size() + m_findMatchesCache.size());
-    for (Vector<FindMatch>::const_iterator it = m_findMatchesCache.begin(); it != m_findMatchesCache.end(); ++it) {
-        ASSERT(!it->m_rect.isEmpty());
-        frameRects.append(it->m_rect);
-    }
-}
-
-int WebFrameImpl::selectNearestFindMatch(const WebFloatPoint& point, WebRect* selectionRect)
-{
-    ASSERT(!parent());
-
-    WebFrameImpl* bestFrame = 0;
-    int indexInBestFrame = -1;
-    float distanceInBestFrame = FLT_MAX;
-
-    for (WebFrameImpl* frame = this; frame; frame = static_cast<WebFrameImpl*>(frame->traverseNext(false))) {
-        float distanceInFrame;
-        int indexInFrame = frame->nearestFindMatch(point, distanceInFrame);
-        if (distanceInFrame < distanceInBestFrame) {
-            bestFrame = frame;
-            indexInBestFrame = indexInFrame;
-            distanceInBestFrame = distanceInFrame;
-        }
-    }
-
-    if (indexInBestFrame != -1)
-        return bestFrame->selectFindMatch(static_cast<unsigned>(indexInBestFrame), selectionRect);
-
-    return -1;
-}
-
-int WebFrameImpl::nearestFindMatch(const FloatPoint& point, float& distanceSquared)
-{
-    updateFindMatchRects();
-
-    int nearest = -1;
-    distanceSquared = FLT_MAX;
-    for (size_t i = 0; i < m_findMatchesCache.size(); ++i) {
-        ASSERT(!m_findMatchesCache[i].m_rect.isEmpty());
-        FloatSize offset = point - m_findMatchesCache[i].m_rect.center();
-        float width = offset.width();
-        float height = offset.height();
-        float currentDistanceSquared = width * width + height * height;
-        if (currentDistanceSquared < distanceSquared) {
-            nearest = i;
-            distanceSquared = currentDistanceSquared;
-        }
-    }
-    return nearest;
-}
-
-int WebFrameImpl::selectFindMatch(unsigned index, WebRect* selectionRect)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(index < m_findMatchesCache.size());
-
-    RefPtr<Range> range = m_findMatchesCache[index].m_range;
-    if (!range->boundaryPointsValid() || !range->startContainer()->inDocument())
-        return -1;
-
-    // Check if the match is already selected.
-    WebFrameImpl* activeMatchFrame = viewImpl()->mainFrameImpl()->m_currentActiveMatchFrame;
-    if (this != activeMatchFrame || !m_activeMatch || !areRangesEqual(m_activeMatch.get(), range.get())) {
-        if (isActiveMatchFrameValid())
-            activeMatchFrame->setMarkerActive(activeMatchFrame->m_activeMatch.get(), false);
-
-        m_activeMatchIndexInCurrentFrame = m_findMatchesCache[index].m_ordinal - 1;
-
-        // Set this frame as the active frame (the one with the active highlight).
-        viewImpl()->mainFrameImpl()->m_currentActiveMatchFrame = this;
-        viewImpl()->setFocusedFrame(this);
-
-        m_activeMatch = range.release();
-        setMarkerActive(m_activeMatch.get(), true);
-
-        // Clear any user selection, to make sure Find Next continues on from the match we just activated.
-        frame()->selection()->clear();
-
-        // Make sure no node is focused. See http://crbug.com/38700.
-        frame()->document()->setFocusedNode(0);
-    }
-
-    IntRect activeMatchRect;
-    IntRect activeMatchBoundingBox = enclosingIntRect(RenderObject::absoluteBoundingBoxRectForRange(m_activeMatch.get()));
-
-    if (!activeMatchBoundingBox.isEmpty()) {
-        if (m_activeMatch->firstNode() && m_activeMatch->firstNode()->renderer())
-            m_activeMatch->firstNode()->renderer()->scrollRectToVisible(activeMatchBoundingBox,
-                    ScrollAlignment::alignCenterIfNeeded, ScrollAlignment::alignCenterIfNeeded);
-
-        // Zoom to the active match.
-        activeMatchRect = frameView()->contentsToWindow(activeMatchBoundingBox);
-        viewImpl()->zoomToFindInPageRect(activeMatchRect);
-    }
-
-    if (selectionRect)
-        *selectionRect = activeMatchRect;
-
-    return ordinalOfFirstMatchForFrame(this) + m_activeMatchIndexInCurrentFrame + 1;
-}
-
-WebString WebFrameImpl::contentAsText(size_t maxChars) const
-{
-    if (!frame())
-        return WebString();
-    Vector<UChar> text;
-    frameContentAsPlainText(maxChars, frame(), &text);
-    return String::adopt(text);
-}
-
-WebString WebFrameImpl::contentAsMarkup() const
-{
-    if (!frame())
-        return WebString();
-    return createFullMarkup(frame()->document());
-}
-
-WebString WebFrameImpl::renderTreeAsText(RenderAsTextControls toShow) const
-{
-    RenderAsTextBehavior behavior = RenderAsTextBehaviorNormal;
-
-    if (toShow & RenderAsTextDebug)
-        behavior |= RenderAsTextShowCompositedLayers | RenderAsTextShowAddresses | RenderAsTextShowIDAndClass | RenderAsTextShowLayerNesting;
-
-    if (toShow & RenderAsTextPrinting)
-        behavior |= RenderAsTextPrintingMode;
-
-    return externalRepresentation(frame(), behavior);
-}
-
-WebString WebFrameImpl::markerTextForListItem(const WebElement& webElement) const
-{
-    return WebCore::markerTextForListItem(const_cast<Element*>(webElement.constUnwrap<Element>()));
-}
-
-void WebFrameImpl::printPagesWithBoundaries(WebCanvas* canvas, const WebSize& pageSizeInPixels)
-{
-    ASSERT(m_printContext);
-
-    GraphicsContext graphicsContext(canvas);
-    graphicsContext.setPrinting(true);
-
-    m_printContext->spoolAllPagesWithBoundaries(graphicsContext, FloatSize(pageSizeInPixels.width, pageSizeInPixels.height));
-}
-
-WebRect WebFrameImpl::selectionBoundsRect() const
-{
-    return hasSelection() ? WebRect(IntRect(frame()->selection()->bounds(false))) : WebRect();
-}
-
-bool WebFrameImpl::selectionStartHasSpellingMarkerFor(int from, int length) const
-{
-    if (!frame())
-        return false;
-    return frame()->editor()->selectionStartHasMarkerFor(DocumentMarker::Spelling, from, length);
-}
-
-WebString WebFrameImpl::layerTreeAsText(bool showDebugInfo) const
-{
-    if (!frame())
-        return WebString();
-    
-    return WebString(frame()->layerTreeAsText(showDebugInfo ? LayerTreeIncludesDebugInfo : LayerTreeNormal));
-}
-
-// WebFrameImpl public ---------------------------------------------------------
-
-PassRefPtr<WebFrameImpl> WebFrameImpl::create(WebFrameClient* client)
-{
-    return adoptRef(new WebFrameImpl(client));
-}
-
-WebFrameImpl::WebFrameImpl(WebFrameClient* client)
-    : FrameDestructionObserver(0)
-    , m_frameLoaderClient(this)
-    , m_client(client)
-    , m_currentActiveMatchFrame(0)
-    , m_activeMatchIndexInCurrentFrame(-1)
-    , m_locatingActiveRect(false)
-    , m_resumeScopingFromRange(0)
-    , m_lastMatchCount(-1)
-    , m_totalMatchCount(-1)
-    , m_framesScopingCount(-1)
-    , m_findRequestIdentifier(-1)
-    , m_scopingInProgress(false)
-    , m_lastFindRequestCompletedWithNoMatches(false)
-    , m_nextInvalidateAfter(0)
-    , m_findMatchMarkersVersion(0)
-    , m_findMatchRectsAreValid(false)
-    , m_identifier(generateFrameIdentifier())
-    , m_inSameDocumentHistoryLoad(false)
-{
-    WebKit::Platform::current()->incrementStatsCounter(webFrameActiveCount);
-    frameCount++;
-}
-
-WebFrameImpl::~WebFrameImpl()
-{
-    WebKit::Platform::current()->decrementStatsCounter(webFrameActiveCount);
-    frameCount--;
-
-    cancelPendingScopingEffort();
-}
-
-void WebFrameImpl::setWebCoreFrame(WebCore::Frame* frame)
-{
-    ASSERT(frame);
-    observeFrame(frame);
-}
-
-void WebFrameImpl::initializeAsMainFrame(WebCore::Page* page)
-{
-    RefPtr<Frame> mainFrame = Frame::create(page, 0, &m_frameLoaderClient);
-    setWebCoreFrame(mainFrame.get());
-
-    // Add reference on behalf of FrameLoader.  See comments in
-    // WebFrameLoaderClient::frameLoaderDestroyed for more info.
-    ref();
-
-    // We must call init() after m_frame is assigned because it is referenced
-    // during init().
-    frame()->init();
-}
-
-PassRefPtr<Frame> WebFrameImpl::createChildFrame(const FrameLoadRequest& request, HTMLFrameOwnerElement* ownerElement)
-{
-    RefPtr<WebFrameImpl> webframe(adoptRef(new WebFrameImpl(m_client)));
-
-    // Add an extra ref on behalf of the Frame/FrameLoader, which references the
-    // WebFrame via the FrameLoaderClient interface. See the comment at the top
-    // of this file for more info.
-    webframe->ref();
-
-    RefPtr<Frame> childFrame = Frame::create(frame()->page(), ownerElement, &webframe->m_frameLoaderClient);
-    webframe->setWebCoreFrame(childFrame.get());
-
-    childFrame->tree()->setName(request.frameName());
-
-    frame()->tree()->appendChild(childFrame);
-
-    // Frame::init() can trigger onload event in the parent frame,
-    // which may detach this frame and trigger a null-pointer access
-    // in FrameTree::removeChild. Move init() after appendChild call
-    // so that webframe->mFrame is in the tree before triggering
-    // onload event handler.
-    // Because the event handler may set webframe->mFrame to null,
-    // it is necessary to check the value after calling init() and
-    // return without loading URL.
-    // (b:791612)
-    childFrame->init(); // create an empty document
-    if (!childFrame->tree()->parent())
-        return 0;
-
-    frame()->loader()->loadURLIntoChildFrame(request.resourceRequest(), childFrame.get());
-
-    // A synchronous navigation (about:blank) would have already processed
-    // onload, so it is possible for the frame to have already been destroyed by
-    // script in the page.
-    if (!childFrame->tree()->parent())
-        return 0;
-
-    if (m_client)
-        m_client->didCreateFrame(this, webframe.get());
-
-    return childFrame.release();
-}
-
-void WebFrameImpl::didChangeContentsSize(const IntSize& size)
-{
-    // This is only possible on the main frame.
-    if (m_totalMatchCount > 0) {
-        ASSERT(!parent());
-        ++m_findMatchMarkersVersion;
-    }
-}
-
-void WebFrameImpl::createFrameView()
-{
-    TRACE_EVENT0("webkit", "WebFrameImpl::createFrameView");
-
-    ASSERT(frame()); // If frame() doesn't exist, we probably didn't init properly.
-
-    WebViewImpl* webView = viewImpl();
-    bool isMainFrame = webView->mainFrameImpl()->frame() == frame();
-    if (isMainFrame)
-        webView->suppressInvalidations(true);
- 
-    frame()->createView(webView->size(), Color::white, webView->isTransparent(), webView->fixedLayoutSize(), isMainFrame ? webView->isFixedLayoutModeEnabled() : 0);
-    if (webView->shouldAutoResize() && isMainFrame)
-        frame()->view()->enableAutoSizeMode(true, webView->minAutoSize(), webView->maxAutoSize());
-
-    if (isMainFrame)
-        webView->suppressInvalidations(false);
- 
-    if (isMainFrame && webView->devToolsAgentPrivate())
-        webView->devToolsAgentPrivate()->mainFrameViewCreated(this);
-}
-
-WebFrameImpl* WebFrameImpl::fromFrame(Frame* frame)
-{
-    if (!frame)
-        return 0;
-    return static_cast<FrameLoaderClientImpl*>(frame->loader()->client())->webFrame();
-}
-
-WebFrameImpl* WebFrameImpl::fromFrameOwnerElement(Element* element)
-{
-    // FIXME: Why do we check specifically for <iframe> and <frame> here? Why can't we get the WebFrameImpl from an <object> element, for example.
-    if (!element || !element->isFrameOwnerElement() || (!element->hasTagName(HTMLNames::iframeTag) && !element->hasTagName(HTMLNames::frameTag)))
-        return 0;
-    HTMLFrameOwnerElement* frameElement = toFrameOwnerElement(element);
-    return fromFrame(frameElement->contentFrame());
-}
-
-WebViewImpl* WebFrameImpl::viewImpl() const
-{
-    if (!frame())
-        return 0;
-    return WebViewImpl::fromPage(frame()->page());
-}
-
-WebDataSourceImpl* WebFrameImpl::dataSourceImpl() const
-{
-    return static_cast<WebDataSourceImpl*>(dataSource());
-}
-
-WebDataSourceImpl* WebFrameImpl::provisionalDataSourceImpl() const
-{
-    return static_cast<WebDataSourceImpl*>(provisionalDataSource());
-}
-
-void WebFrameImpl::setFindEndstateFocusAndSelection()
-{
-    WebFrameImpl* mainFrameImpl = viewImpl()->mainFrameImpl();
-
-    if (this == mainFrameImpl->activeMatchFrame() && m_activeMatch.get()) {
-        // If the user has set the selection since the match was found, we
-        // don't focus anything.
-        VisibleSelection selection(frame()->selection()->selection());
-        if (!selection.isNone())
-            return;
-
-        // Try to find the first focusable node up the chain, which will, for
-        // example, focus links if we have found text within the link.
-        Node* node = m_activeMatch->firstNode();
-        if (node && node->isInShadowTree()) {
-            Node* host = node->deprecatedShadowAncestorNode();
-            if (host->hasTagName(HTMLNames::inputTag) || host->hasTagName(HTMLNames::textareaTag))
-                node = host;
-        }
-        while (node && !node->isFocusable() && node != frame()->document())
-            node = node->parentNode();
-
-        if (node && node != frame()->document()) {
-            // Found a focusable parent node. Set the active match as the
-            // selection and focus to the focusable node.
-            frame()->selection()->setSelection(m_activeMatch.get());
-            frame()->document()->setFocusedNode(node);
-            return;
-        }
-
-        // Iterate over all the nodes in the range until we find a focusable node.
-        // This, for example, sets focus to the first link if you search for
-        // text and text that is within one or more links.
-        node = m_activeMatch->firstNode();
-        while (node && node != m_activeMatch->pastLastNode()) {
-            if (node->isFocusable()) {
-                frame()->document()->setFocusedNode(node);
-                return;
-            }
-            node = NodeTraversal::next(node);
-        }
-
-        // No node related to the active match was focusable, so set the
-        // active match as the selection (so that when you end the Find session,
-        // you'll have the last thing you found highlighted) and make sure that
-        // we have nothing focused (otherwise you might have text selected but
-        // a link focused, which is weird).
-        frame()->selection()->setSelection(m_activeMatch.get());
-        frame()->document()->setFocusedNode(0);
-
-        // Finally clear the active match, for two reasons:
-        // We just finished the find 'session' and we don't want future (potentially
-        // unrelated) find 'sessions' operations to start at the same place.
-        // The WebFrameImpl could get reused and the m_activeMatch could end up pointing
-        // to a document that is no longer valid. Keeping an invalid reference around
-        // is just asking for trouble.
-        m_activeMatch = 0;
-    }
-}
-
-void WebFrameImpl::didFail(const ResourceError& error, bool wasProvisional)
-{
-    if (!client())
-        return;
-    WebURLError webError = error;
-    if (wasProvisional)
-        client()->didFailProvisionalLoad(this, webError);
-    else
-        client()->didFailLoad(this, webError);
-}
-
-void WebFrameImpl::setCanHaveScrollbars(bool canHaveScrollbars)
-{
-    frame()->view()->setCanHaveScrollbars(canHaveScrollbars);
-}
-
-void WebFrameImpl::invalidateArea(AreaToInvalidate area)
-{
-    ASSERT(frame() && frame()->view());
-    FrameView* view = frame()->view();
-
-    if ((area & InvalidateAll) == InvalidateAll)
-        view->invalidateRect(view->frameRect());
-    else {
-        if ((area & InvalidateContentArea) == InvalidateContentArea) {
-            IntRect contentArea(
-                view->x(), view->y(), view->visibleWidth(), view->visibleHeight());
-            IntRect frameRect = view->frameRect();
-            contentArea.move(-frameRect.x(), -frameRect.y());
-            view->invalidateRect(contentArea);
-        }
-    }
-
-    if ((area & InvalidateScrollbar) == InvalidateScrollbar) {
-        // Invalidate the vertical scroll bar region for the view.
-        Scrollbar* scrollbar = view->verticalScrollbar();
-        if (scrollbar)
-            scrollbar->invalidate();
-    }
-}
-
-void WebFrameImpl::addMarker(Range* range, bool activeMatch)
-{
-    frame()->document()->markers()->addTextMatchMarker(range, activeMatch);
-}
-
-void WebFrameImpl::setMarkerActive(Range* range, bool active)
-{
-    WebCore::ExceptionCode ec;
-    if (!range || range->collapsed(ec))
-        return;
-    frame()->document()->markers()->setMarkersActive(range, active);
-}
-
-int WebFrameImpl::ordinalOfFirstMatchForFrame(WebFrameImpl* frame) const
-{
-    int ordinal = 0;
-    WebFrameImpl* mainFrameImpl = viewImpl()->mainFrameImpl();
-    // Iterate from the main frame up to (but not including) |frame| and
-    // add up the number of matches found so far.
-    for (WebFrameImpl* it = mainFrameImpl; it != frame; it = static_cast<WebFrameImpl*>(it->traverseNext(true))) {
-        if (it->m_lastMatchCount > 0)
-            ordinal += it->m_lastMatchCount;
-    }
-    return ordinal;
-}
-
-bool WebFrameImpl::shouldScopeMatches(const String& searchText)
-{
-    // Don't scope if we can't find a frame or a view.
-    // The user may have closed the tab/application, so abort.
-    // Also ignore detached frames, as many find operations report to the main frame.
-    if (!frame() || !frame()->view() || !frame()->page() || !hasVisibleContent())
-        return false;
-
-    ASSERT(frame()->document() && frame()->view());
-
-    // If the frame completed the scoping operation and found 0 matches the last
-    // time it was searched, then we don't have to search it again if the user is
-    // just adding to the search string or sending the same search string again.
-    if (m_lastFindRequestCompletedWithNoMatches && !m_lastSearchString.isEmpty()) {
-        // Check to see if the search string prefixes match.
-        String previousSearchPrefix =
-            searchText.substring(0, m_lastSearchString.length());
-
-        if (previousSearchPrefix == m_lastSearchString)
-            return false; // Don't search this frame, it will be fruitless.
-    }
-
-    return true;
-}
-
-void WebFrameImpl::scopeStringMatchesSoon(int identifier, const WebString& searchText, const WebFindOptions& options, bool reset)
-{
-    m_deferredScopingWork.append(new DeferredScopeStringMatches(this, identifier, searchText, options, reset));
-}
-
-void WebFrameImpl::callScopeStringMatches(DeferredScopeStringMatches* caller, int identifier, const WebString& searchText, const WebFindOptions& options, bool reset)
-{
-    m_deferredScopingWork.remove(m_deferredScopingWork.find(caller));
-    scopeStringMatches(identifier, searchText, options, reset);
-
-    // This needs to happen last since searchText is passed by reference.
-    delete caller;
-}
-
-void WebFrameImpl::invalidateIfNecessary()
-{
-    if (m_lastMatchCount <= m_nextInvalidateAfter)
-        return;
-
-    // FIXME: (http://b/1088165) Optimize the drawing of the tickmarks and
-    // remove this. This calculation sets a milestone for when next to
-    // invalidate the scrollbar and the content area. We do this so that we
-    // don't spend too much time drawing the scrollbar over and over again.
-    // Basically, up until the first 500 matches there is no throttle.
-    // After the first 500 matches, we set set the milestone further and
-    // further out (750, 1125, 1688, 2K, 3K).
-    static const int startSlowingDownAfter = 500;
-    static const int slowdown = 750;
-
-    int i = m_lastMatchCount / startSlowingDownAfter;
-    m_nextInvalidateAfter += i * slowdown;
-    invalidateArea(InvalidateScrollbar);
-}
-
-void WebFrameImpl::loadJavaScriptURL(const KURL& url)
-{
-    // This is copied from ScriptController::executeScriptIfJavaScriptURL.
-    // Unfortunately, we cannot just use that method since it is private, and
-    // it also doesn't quite behave as we require it to for bookmarklets.  The
-    // key difference is that we need to suppress loading the string result
-    // from evaluating the JS URL if executing the JS URL resulted in a
-    // location change.  We also allow a JS URL to be loaded even if scripts on
-    // the page are otherwise disabled.
-
-    if (!frame()->document() || !frame()->page())
-        return;
-
-    RefPtr<Document> ownerDocument(frame()->document());
-
-    // Protect privileged pages against bookmarklets and other javascript manipulations.
-    if (SchemeRegistry::shouldTreatURLSchemeAsNotAllowingJavascriptURLs(frame()->document()->url().protocol()))
-        return;
-
-    String script = decodeURLEscapeSequences(url.string().substring(strlen("javascript:")));
-    ScriptValue result = frame()->script()->executeScript(script, true);
-
-    String scriptResult;
-    if (!result.getString(scriptResult))
-        return;
-
-    if (!frame()->navigationScheduler()->locationChangePending())
-        frame()->document()->loader()->replaceDocument(scriptResult, ownerDocument.get());
-}
-
-void WebFrameImpl::willDetachPage()
-{
-    if (!frame() || !frame()->page())
-        return;
-
-    // Do not expect string scoping results from any frames that got detached
-    // in the middle of the operation.
-    if (m_scopingInProgress) {
-
-        // There is a possibility that the frame being detached was the only
-        // pending one. We need to make sure final replies can be sent.
-        flushCurrentScopingEffort(m_findRequestIdentifier);
-
-        cancelPendingScopingEffort();
-    }
-}
-
-} // namespace WebKit