Fix main thread top controls scrolling to mirror CC.

third_party/WebKit/public/web/WebView.h

 /*
  * Copyright (C) 2009, 2010, 2011, 2012 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
@@ skipping 267 matching lines @@
     virtual void setDeviceScaleFactor(float) = 0;
 
     // Sets the additional zoom factor used for device scale factor. This is used
     // to scale the content by the device scale factor, without affecting zoom level.
     virtual void setZoomFactorForDeviceScaleFactor(float) = 0;
 
     // Set and reset the device color profile.
     virtual void setDeviceColorProfile(const WebVector<char>&) = 0;
     virtual void resetDeviceColorProfileForTesting() = 0;
 
+    // Resize the view at the same time as changing the state of the top
+    // controls. If |topControlsShrinkLayout| is true, the embedder shrunk the
+    // WebView size by the top controls height.
+    virtual void resizeWithTopControls(
+        const WebSize&,
+        float topControlsHeight,
+        bool topControlsShrinkLayout) = 0;
+
     // Auto-Resize -----------------------------------------------------------
 
     // In auto-resize mode, the view is automatically adjusted to fit the html
     // content within the given bounds.
     virtual void enableAutoResizeMode(
         const WebSize& minSize,
         const WebSize& maxSize) = 0;
 
     // Turn off auto-resize.
     virtual void disableAutoResizeMode() = 0;
@@ skipping 182 matching lines @@
     // context's ability to deal with that failure gracefully can be tested.
     virtual void forceNextDrawingBufferCreationToFail() = 0;
 
 protected:
     ~WebView() {}
 };
 
 } // namespace blink
 
 #endif