Hide fullscreen rotation jank

content/browser/renderer_host/render_widget_host_view_base.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_BASE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_BASE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 382 matching lines @@
 
   // Called by the RenderWidgetHost when an ambiguous gesture is detected to
   // show the disambiguation popup bubble.
   virtual void ShowDisambiguationPopup(const gfx::Rect& rect_pixels,
                                        const SkBitmap& zoomed_bitmap);
 
   // Called by the WebContentsImpl when a user tries to navigate a new page on
   // main frame.
   virtual void OnDidNavigateMainFrameToNewPage();
 
+  // Called by the WebContentsImpl when the fullscreen state is changed.
+  virtual void OnFullscreenStateChanged() {}
+
   // Called by WebContentsImpl to notify the view about a change in visibility
   // of context menu. The view can then perform platform specific tasks and
   // changes.
   virtual void SetShowingContextMenu(bool showing) {}
 
   // Add and remove observers for lifetime event notifications. The order in
   // which notifications are sent to observers is undefined. Clients must be
   // sure to remove the observer before they go away.
   void AddObserver(RenderWidgetHostViewBaseObserver* observer);
   void RemoveObserver(RenderWidgetHostViewBaseObserver* observer);
@@ skipping 78 matching lines @@
   base::ObserverList<RenderWidgetHostViewBaseObserver> observers_;
 
   base::WeakPtrFactory<RenderWidgetHostViewBase> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewBase);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_BASE_H_