Implement screen orientation for out-of-process iframes.

content/renderer/render_widget.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_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 555 matching lines @@
   void OnRequestCompositionUpdates(bool immediate_request,
                                    bool monitor_updates);
 
   // Notify the compositor about a change in viewport size. This should be
   // used only with auto resize mode WebWidgets, as normal WebWidgets should
   // go through OnResize.
   void AutoResizeCompositor();
 
   virtual void OnSetDeviceScaleFactor(float device_scale_factor);
 
-  virtual void OnOrientationChange();
+  void OnOrientationChange();
 
   // Override points to notify derived classes that a paint has happened.
   // DidInitiatePaint happens when that has completed, and subsequent rendering
   // won't affect the painted content.
   virtual void DidInitiatePaint() {}
 
   virtual GURL GetURLForGraphicsContext3D();
 
   // Sets the "hidden" state of this widget.  All accesses to is_hidden_ should
   // use this method so that we can properly inform the RenderThread of our
@@ skipping 295 matching lines @@
   scoped_refptr<MainThreadEventQueue> input_event_queue_;
 
   base::WeakPtrFactory<RenderWidget> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_