[Views, WebIntents] Enable auto-resizing for WebContents

ui/views/controls/webview/webview.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/controls/webview/webview.h"
 
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_registrar.h"
@@ skipping 61 matching lines @@
 void WebView::SetFastResize(bool fast_resize) {
   wcv_holder_->set_fast_resize(fast_resize);
 }
 
 void WebView::OnWebContentsFocused(content::WebContents* web_contents) {
   FocusManager* focus_manager = GetFocusManager();
   if (focus_manager)
     focus_manager->SetFocusedView(this);
 }
 
+void WebView::SetPreferredSize(const gfx::Size& preferred_size) {
+  preferred_size_ = preferred_size;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // WebView, View overrides:
 
 std::string WebView::GetClassName() const {
   return kViewClassName;
 }
 
 void WebView::OnBoundsChanged(const gfx::Rect& previous_bounds) {
   wcv_holder_->SetSize(bounds().size());
 }
@@ skipping 38 matching lines @@
 gfx::NativeViewAccessible WebView::GetNativeViewAccessible() {
   if (web_contents_) {
     content::RenderWidgetHostView* host_view =
         web_contents_->GetRenderWidgetHostView();
     if (host_view)
       return host_view->GetNativeViewAccessible();
   }
   return View::GetNativeViewAccessible();
 }
 
+gfx::Size WebView::GetPreferredSize() {
+  if (preferred_size_ == gfx::Size())
+    return View::GetPreferredSize();
+  else
+    return preferred_size_;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // WebView, content::NotificationObserver implementation:
 
 void WebView::Observe(int type,
                       const content::NotificationSource& source,
                       const content::NotificationDetails& details) {
   if (type == content::NOTIFICATION_RENDER_VIEW_HOST_CHANGED) {
     std::pair<content::RenderViewHost*, content::RenderViewHost*>*
         switched_details =
             content::Details<std::pair<content::RenderViewHost*,
@@ skipping 89 matching lines @@
                                         site_instance,
                                         MSG_ROUTING_NONE,
                                         NULL,
                                         NULL);
   }
 
   return contents;
 }
 
 }  // namespace views