Delete a bunch of noop paint invalidation code.

sky/engine/public/web/WebWidgetClient.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 30 matching lines @@
 namespace blink {
 
 class WebGestureEvent;
 class WebString;
 class WebWidget;
 struct WebCursorInfo;
 struct WebSize;
 
 class WebWidgetClient {
 public:
-    // Called when a region of the WebWidget needs to be re-painted.
-    virtual void didInvalidateRect(const WebRect&) { }
-
     // Called when the Widget has changed size as a result of an auto-resize.
     virtual void didAutoResize(const WebSize& newSize) { }
 
     // Initialize compositing for this widget.
     virtual void initializeLayerTreeView() { BLINK_ASSERT_NOT_REACHED(); };
 
-    // Sometimes the WebWidget enters a state where it will generate a sequence
-    // of invalidations that should not, by themselves, trigger the compositor
-    // to schedule a new frame. This call indicates to the embedder that it
-    // should suppress compositor scheduling temporarily.
-    virtual void suppressCompositorScheduling(bool enable) { }
-
     // Indicates to the embedder that the compositor is about to begin a
     // frame. This is primarily to signal to flow control mechanisms that a
     // frame is beginning, not to perform actual painting work.
     virtual void willBeginCompositorFrame() { }
 
     // Indicates to the embedder that the WebWidget is ready for additional
     // input.
     virtual void didBecomeReadyForAdditionalInput() { }
 
     // Called for compositing mode when a frame commit operation has finished.
@@ skipping 71 matching lines @@
     // Request the browser to show the IME for current input type.
     virtual void showImeIfNeeded() { }
 
 protected:
     ~WebWidgetClient() { }
 };
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_PUBLIC_WEB_WEBWIDGETCLIENT_H_