Introduce content::RenderWidgetHostViewPort (in content/port/browser).

content/browser/renderer_host/render_widget_host_view.h

Index: content/browser/renderer_host/render_widget_host_view.h
diff --git a/content/browser/renderer_host/render_widget_host_view.h b/content/browser/renderer_host/render_widget_host_view.h
index 99a7c91705f37f741b9e32e129f5dcaecc3b493f..6260eea6d2a132342b76561b8a491d56bb8b0bc1 100644
--- a/content/browser/renderer_host/render_widget_host_view.h
+++ b/content/browser/renderer_host/render_widget_host_view.h
@@ -6,449 +6,8 @@
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_H_
 #pragma once
 
-#if defined(OS_MACOSX)
-#include <OpenGL/OpenGL.h>
-#endif
+// TODO(joi): Remove this placeholder file.
 
-#if defined(TOOLKIT_USES_GTK)
-#include <gdk/gdk.h>
-#endif
-
-#include <string>
-#include <vector>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/process_util.h"
-#include "base/callback_forward.h"
-#include "content/common/content_export.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebPopupType.h"
-#include "ui/base/ime/text_input_type.h"
-#include "ui/base/range/range.h"
-#include "ui/gfx/native_widget_types.h"
-#include "ui/gfx/surface/transport_dib.h"
-
-struct GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params;
-struct GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params;
-
-class BackingStore;
-class BrowserAccessibilityManager;
-class RenderWidgetHost;
-class WebCursor;
-struct AccessibilityHostMsg_NotificationParams;
-struct NativeWebKeyboardEvent;
-
-namespace content {
-class RenderProcessHost;
-}
-
-namespace gfx {
-class Rect;
-class Size;
-}
-
-namespace webkit {
-namespace npapi {
-struct WebPluginGeometry;
-}
-}
-
-#if defined(OS_POSIX) || defined(USE_AURA)
-namespace WebKit {
-struct WebScreenInfo;
-}
-#endif
-
-// RenderWidgetHostView is an interface implemented by an object that acts as
-// the "View" portion of a RenderWidgetHost. The RenderWidgetHost and its
-// associated RenderProcessHost own the "Model" in this case which is the
-// child renderer process. The View is responsible for receiving events from
-// the surrounding environment and passing them to the RenderWidgetHost, and
-// for actually displaying the content of the RenderWidgetHost when it
-// changes.
-//
-// TODO(joi): Move this to content/public/browser
-class CONTENT_EXPORT RenderWidgetHostView {
- public:
-  virtual ~RenderWidgetHostView();
-
-  // Platform-specific creator. Use this to construct new RenderWidgetHostViews
-  // rather than using RenderWidgetHostViewWin & friends.
-  //
-  // This function must NOT size it, because the RenderView in the renderer
-  // wouldn't have been created yet. The widget would set its "waiting for
-  // resize ack" flag, and the ack would never come becasue no RenderView
-  // received it.
-  //
-  // The RenderWidgetHost must already be created (because we can't know if it's
-  // going to be a regular RenderWidgetHost or a RenderViewHost (a subclass).
-  static RenderWidgetHostView* CreateViewForWidget(
-      RenderWidgetHost* widget);
-
-  // Initialize this object for use as a drawing area.  |parent_view| may be
-  // left as NULL on platforms where a parent view is not required to initialize
-  // a child window.
-  virtual void InitAsChild(gfx::NativeView parent_view) = 0;
-
-  // Returns the associated RenderWidgetHost.
-  virtual RenderWidgetHost* GetRenderWidgetHost() const = 0;
-
-  // Tells the View to size itself to the specified size.
-  virtual void SetSize(const gfx::Size& size) = 0;
-
-  // Tells the View to size and move itself to the specified size and point in
-  // screen space.
-  virtual void SetBounds(const gfx::Rect& rect) = 0;
-
-  // Retrieves the native view used to contain plugins and identify the
-  // renderer in IPC messages.
-  virtual gfx::NativeView GetNativeView() const = 0;
-  virtual gfx::NativeViewId GetNativeViewId() const = 0;
-  virtual gfx::NativeViewAccessible GetNativeViewAccessible() = 0;
-
-  // Set focus to the associated View component.
-  virtual void Focus() = 0;
-  // Returns true if the View currently has the focus.
-  virtual bool HasFocus() const = 0;
-
-  // Shows/hides the view.  These must always be called together in pairs.
-  // It is not legal to call Hide() multiple times in a row.
-  virtual void Show() = 0;
-  virtual void Hide() = 0;
-
-  // Whether the view is showing.
-  virtual bool IsShowing() = 0;
-
-  // Retrieve the bounds of the View, in screen coordinates.
-  virtual gfx::Rect GetViewBounds() const = 0;
-
-  // Returns true if the View's context menu is showing.
-  virtual bool IsShowingContextMenu() const = 0;
-
-  // Tells the View whether the context menu is showing.
-  virtual void SetShowingContextMenu(bool showing) = 0;
-
-#if defined(OS_MACOSX)
-  // Set the view's active state (i.e., tint state of controls).
-  virtual void SetActive(bool active) = 0;
-
-  // Tells the view whether or not to accept first responder status.  If |flag|
-  // is true, the view does not accept first responder status and instead
-  // manually becomes first responder when it receives a mouse down event.  If
-  // |flag| is false, the view participates in the key-view chain as normal.
-  virtual void SetTakesFocusOnlyOnMouseDown(bool flag) = 0;
-
-  // Notifies the view that its enclosing window has changed visibility
-  // (minimized/unminimized, app hidden/unhidden, etc).
-  // TODO(stuartmorgan): This is a temporary plugin-specific workaround for
-  // <http://crbug.com/34266>. Once that is fixed, this (and the corresponding
-  // message and renderer-side handling) can be removed in favor of using
-  // WasHidden/DidBecomeSelected.
-  virtual void SetWindowVisibility(bool visible) = 0;
-
-  // Informs the view that its containing window's frame changed.
-  virtual void WindowFrameChanged() = 0;
-#endif  // defined(OS_MACOSX)
-
-#if defined(TOOLKIT_USES_GTK)
-  // Gets the event for the last mouse down.
-  virtual GdkEventButton* GetLastMouseDown() = 0;
-#if !defined(TOOLKIT_VIEWS)
-  // Builds a submenu containing all the gtk input method commands.
-  virtual gfx::NativeView BuildInputMethodsGtkMenu() = 0;
-#endif  // !defined(TOOLKIT_VIEWS)
-#endif  // defined(TOOLKIT_USES_GTK)
-
-  // TODO(joi): May be able to move into impl if RWHVMacDelegate stops
-  // being exposed to Chrome.
-  virtual void UnhandledWheelEvent(const WebKit::WebMouseWheelEvent& event) = 0;
-
-  // Subclasses should override this method to do what is appropriate to set
-  // the custom background for their platform.
-  virtual void SetBackground(const SkBitmap& background) = 0;
-  virtual const SkBitmap& GetBackground() = 0;
-
-  // TODO(joi): Remove this when we remove the dependency by chrome/
-  // on browser_accessibility* files in content.
-  virtual BrowserAccessibilityManager*
-      GetBrowserAccessibilityManager() const = 0;
-
- protected:
-  RenderWidgetHostView();
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostView);
-};
-
-// This is the larger RenderWidgetHostView interface exposed only
-// within content/, plus some basic implementation.
-//
-// TODO(joi): Extract a pure virtual interface from these additional
-// methods (named RenderWidgetHostViewPort?), move it to content/port,
-// and have content/ use that interface everywhere except where it is
-// using concrete implementation classes.  The RWHVBase class might
-// still exist for shared implementation between existing concrete
-// implementations.
-class CONTENT_EXPORT RenderWidgetHostViewBase : public RenderWidgetHostView {
- public:
-  virtual ~RenderWidgetHostViewBase();
-
-  // Does the cast for you.
-  static RenderWidgetHostViewBase* FromRWHV(RenderWidgetHostView* rwhv);
-
-  // Convenience function instead of
-  // RenderWidgetHostView::CreateViewForWidget if you want a
-  // RenderWidgetHostViewBase.
-  static RenderWidgetHostViewBase* CreateViewForWidget(
-      RenderWidgetHost* widget);
-
-  // Perform all the initialization steps necessary for this object to represent
-  // a popup (such as a <select> dropdown), then shows the popup at |pos|.
-  virtual void InitAsPopup(RenderWidgetHostView* parent_host_view,
-                           const gfx::Rect& pos) = 0;
-
-  // Perform all the initialization steps necessary for this object to represent
-  // a full screen window.
-  // |reference_host_view| is the view associated with the creating page that
-  // helps to position the full screen widget on the correct monitor.
-  virtual void InitAsFullscreen(
-      RenderWidgetHostView* reference_host_view) = 0;
-
-  // Notifies the View that it has become visible.
-  virtual void DidBecomeSelected() = 0;
-
-  // Notifies the View that it has been hidden.
-  virtual void WasHidden() = 0;
-
-  // Moves all plugin windows as described in the given list.
-  virtual void MovePluginWindows(
-      const std::vector<webkit::npapi::WebPluginGeometry>& moves) = 0;
-
-  // Take focus from the associated View component.
-  virtual void Blur() = 0;
-
-  // Sets the cursor to the one associated with the specified cursor_type
-  virtual void UpdateCursor(const WebCursor& cursor) = 0;
-
-  // Indicates whether the page has finished loading.
-  virtual void SetIsLoading(bool is_loading) = 0;
-
-  // Updates the state of the input method attached to the view.
-  virtual void TextInputStateChanged(ui::TextInputType type,
-                                     bool can_compose_inline) = 0;
-
-  // Cancel the ongoing composition of the input method attached to the view.
-  virtual void ImeCancelComposition() = 0;
-
-  // Updates the range of the marked text in an IME composition.
-  virtual void ImeCompositionRangeChanged(const ui::Range& range) {}
-
-  // Informs the view that a portion of the widget's backing store was scrolled
-  // and/or painted.  The view should ensure this gets copied to the screen.
-  //
-  // If the scroll_rect is non-empty, then a portion of the widget's backing
-  // store was scrolled by dx pixels horizontally and dy pixels vertically.
-  // The exposed rect from the scroll operation is included in copy_rects.
-  //
-  // There are subtle performance implications here.  The RenderWidget gets sent
-  // a paint ack after this returns, so if the view only ever invalidates in
-  // response to this, then on Windows, where WM_PAINT has lower priority than
-  // events which can cause renderer resizes/paint rect updates, e.g.
-  // drag-resizing can starve painting; this function thus provides the view its
-  // main chance to ensure it stays painted and not just invalidated.  On the
-  // other hand, if this always blindly paints, then if we're already in the
-  // midst of a paint on the callstack, we can double-paint unnecessarily.
-  // (Worse, we might recursively call RenderWidgetHost::GetBackingStore().)
-  // Thus implementers should generally paint as much of |rect| as possible
-  // synchronously with as little overpainting as possible.
-  virtual void DidUpdateBackingStore(
-      const gfx::Rect& scroll_rect, int scroll_dx, int scroll_dy,
-      const std::vector<gfx::Rect>& copy_rects) = 0;
-
-  // Notifies the View that the renderer has ceased to exist.
-  virtual void RenderViewGone(base::TerminationStatus status,
-                              int error_code) = 0;
-
-  // Tells the View to destroy itself.
-  virtual void Destroy() = 0;
-
-  // Tells the View that the tooltip text for the current mouse position over
-  // the page has changed.
-  virtual void SetTooltipText(const string16& tooltip_text) = 0;
-
-  // Notifies the View that the renderer text selection has changed.
-  virtual void SelectionChanged(const string16& text,
-                                size_t offset,
-                                const ui::Range& range);
-
-  // Notifies the View that the renderer selection bounds has changed.
-  // |start_rect| and |end_rect| are the bounds end of the selection in the
-  // coordinate system of the render view.
-  virtual void SelectionBoundsChanged(const gfx::Rect& start_rect,
-                                      const gfx::Rect& end_rect) {}
-
-  // Allocate a backing store for this view.
-  virtual BackingStore* AllocBackingStore(const gfx::Size& size) = 0;
-
-  // Called when accelerated compositing state changes.
-  virtual void OnAcceleratedCompositingStateChange() = 0;
-  // |params.window| and |params.surface_id| indicate which accelerated
-  // surface's buffers swapped. |params.renderer_id| and |params.route_id|
-  // are used to formulate a reply to the GPU process to prevent it from getting
-  // too far ahead. They may all be zero, in which case no flow control is
-  // enforced; this case is currently used for accelerated plugins.
-  virtual void AcceleratedSurfaceBuffersSwapped(
-      const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params,
-      int gpu_host_id) = 0;
-  // Similar to above, except |params.(x|y|width|height)| define the region
-  // of the surface that changed.
-  virtual void AcceleratedSurfacePostSubBuffer(
-      const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
-      int gpu_host_id) = 0;
-
-  // Release the accelerated surface temporarily. It will be recreated on the
-  // next swap buffers or post sub buffer.
-  virtual void AcceleratedSurfaceSuspend() = 0;
-
-#if defined(OS_MACOSX)
-  // Retrieve the bounds of the view, in cocoa view coordinates.
-  // If the UI scale factor is 2, |GetViewBounds()| will return a size of e.g.
-  // (400, 300) in pixels, while this method will return (200, 150).
-  // Even though this returns an gfx::Rect, the result is NOT IN PIXELS.
-  virtual gfx::Rect GetViewCocoaBounds() const = 0;
-
-  // Informs the view that a plugin gained or lost focus.
-  virtual void PluginFocusChanged(bool focused, int plugin_id) = 0;
-
-  // Start plugin IME.
-  virtual void StartPluginIme() = 0;
-
-  // Does any event handling necessary for plugin IME; should be called after
-  // the plugin has already had a chance to process the event. If plugin IME is
-  // not enabled, this is a no-op, so it is always safe to call.
-  // Returns true if the event was handled by IME.
-  virtual bool PostProcessEventForPluginIme(
-      const NativeWebKeyboardEvent& event) = 0;
-
-  // Methods associated with GPU-accelerated plug-in instances.
-  virtual gfx::PluginWindowHandle AllocateFakePluginWindowHandle(
-      bool opaque, bool root) = 0;
-  virtual void DestroyFakePluginWindowHandle(
-      gfx::PluginWindowHandle window) = 0;
-  virtual void AcceleratedSurfaceSetIOSurface(
-      gfx::PluginWindowHandle window,
-      int32 width,
-      int32 height,
-      uint64 io_surface_identifier) = 0;
-  virtual void AcceleratedSurfaceSetTransportDIB(
-      gfx::PluginWindowHandle window,
-      int32 width,
-      int32 height,
-      TransportDIB::Handle transport_dib) = 0;
-#endif
-
-#if defined(UI_COMPOSITOR_IMAGE_TRANSPORT)
-  virtual void AcceleratedSurfaceNew(
-      int32 width,
-      int32 height,
-      uint64* surface_id,
-      TransportDIB::Handle* surface_handle) = 0;
-  virtual void AcceleratedSurfaceRelease(uint64 surface_id) = 0;
-#endif
-
-#if defined(TOOLKIT_USES_GTK)
-  virtual void CreatePluginContainer(gfx::PluginWindowHandle id) = 0;
-  virtual void DestroyPluginContainer(gfx::PluginWindowHandle id) = 0;
-#endif  // defined(TOOLKIT_USES_GTK)
-
-#if defined(OS_WIN) && !defined(USE_AURA)
-  virtual void WillWmDestroy() = 0;
-#endif
-
-#if defined(OS_POSIX) || defined(USE_AURA)
-  static void GetDefaultScreenInfo(
-      WebKit::WebScreenInfo* results);
-  virtual void GetScreenInfo(WebKit::WebScreenInfo* results) = 0;
-  virtual gfx::Rect GetRootWindowBounds() = 0;
-#endif
-
-  virtual gfx::GLSurfaceHandle GetCompositingSurface() = 0;
-
-  // Because the associated remote WebKit instance can asynchronously
-  // prevent-default on a dispatched touch event, the touch events are queued in
-  // the GestureRecognizer until invocation of ProcessTouchAck releases it to be
-  // processed (when |processed| is false) or ignored (when |processed| is true)
-  virtual void ProcessTouchAck(bool processed) = 0;
-
-  virtual void SetHasHorizontalScrollbar(bool has_horizontal_scrollbar) = 0;
-  virtual void SetScrollOffsetPinning(
-      bool is_pinned_to_left, bool is_pinned_to_right) = 0;
-
-  // Return value indicates whether the mouse is locked successfully or not.
-  virtual bool LockMouse() = 0;
-  virtual void UnlockMouse() = 0;
-
-  virtual void OnAccessibilityNotifications(
-      const std::vector<AccessibilityHostMsg_NotificationParams>& params) {
-  }
-
-  virtual void SetBackground(const SkBitmap& background) OVERRIDE;
-  virtual const SkBitmap& GetBackground() OVERRIDE;
-
-  virtual bool IsShowingContextMenu() const OVERRIDE;
-  virtual void SetShowingContextMenu(bool) OVERRIDE;
-
-  virtual BrowserAccessibilityManager*
-      GetBrowserAccessibilityManager() const OVERRIDE;
-
-  void set_popup_type(WebKit::WebPopupType popup_type) {
-    popup_type_ = popup_type;
-  }
-  WebKit::WebPopupType popup_type() const { return popup_type_; }
-
-  void SetBrowserAccessibilityManager(BrowserAccessibilityManager* manager);
-
-  bool mouse_locked() const { return mouse_locked_; }
-
- protected:
-  // Interface class only, do not construct.
-  RenderWidgetHostViewBase();
-
-  // Whether this view is a popup and what kind of popup it is (select,
-  // autofill...).
-  WebKit::WebPopupType popup_type_;
-
-  // A custom background to paint behind the web content. This will be tiled
-  // horizontally. Can be null, in which case we fall back to painting white.
-  SkBitmap background_;
-
-  // While the mouse is locked, the cursor is hidden from the user. Mouse events
-  // are still generated. However, the position they report is the last known
-  // mouse position just as mouse lock was entered; the movement they report
-  // indicates what the change in position of the mouse would be had it not been
-  // locked.
-  bool mouse_locked_;
-
-  // Whether we are showing a context menu.
-  bool showing_context_menu_;
-
-  // A buffer containing the text inside and around the current selection range.
-  string16 selection_text_;
-
-  // The offset of the text stored in |selection_text_| relative to the start of
-  // the web page.
-  size_t selection_text_offset_;
-
-  // The current selection range relative to the start of the web page.
-  ui::Range selection_range_;
-
- private:
-  // Manager of the tree representation of the WebKit render tree.
-  scoped_ptr<BrowserAccessibilityManager> browser_accessibility_manager_;
-
-  DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewBase);
-};
+#include "content/browser/renderer_host/render_widget_host_view_base.h"
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_H_