WebLayerTreeView and WebWidget API cleanup

public/web/WebWidget.h

 /*
  * Copyright (C) 2009 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 107 matching lines @@
     // warranted before painting again).
     virtual void paint(WebCanvas*, const WebRect& viewPort, PaintOptions = ReadbackFromCompositorIfAvailable) { }
 
     // Returns true if we've started tracking repaint rectangles.
     virtual bool isTrackingRepaints() const { return false; }
 
     // Indicates that the compositing surface associated with this WebWidget is
     // ready to use.
     virtual void setCompositorSurfaceReady() { }
 
-    // Temporary method for the embedder to notify the WebWidget that the widget
-    // has taken damage, e.g. due to a window expose. This method will be
-    // removed when the WebWidget inversion patch lands --- http://crbug.com/112837
-    virtual void setNeedsRedraw() { }
-
     // Called to inform the WebWidget of a change in theme.
     // Implementors that cache rendered copies of widgets need to re-render
     // on receiving this message
     virtual void themeChanged() { }
 
     // Called to inform the WebWidget of an input event. Returns true if
     // the event has been processed, false otherwise.
     virtual bool handleInputEvent(const WebInputEvent&) { return false; }
 
     // Called to inform the WebWidget of the mouse cursor's visibility.
@@ skipping 115 matching lines @@
     // content.
     virtual WebColor backgroundColor() const { return 0xFFFFFFFF; /* SK_ColorWHITE */ }
 
 protected:
     ~WebWidget() { }
 };
 
 } // namespace blink
 
 #endif