Remove Hack used in blink side for merging dependent chromium and blink patches.

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 41 matching lines @@
     virtual void didInvalidateRect(const WebRect&) { }
 
     // Called when a region of the WebWidget, given by clipRect, should be
     // scrolled by the specified dx and dy amounts.
     virtual void didScrollRect(int dx, int dy, const WebRect& clipRect) { }
 
     // Called when the Widget has changed size as a result of an auto-resize.
     virtual void didAutoResize(const WebSize& newSize) { }
 
     // Called when the compositor is enabled or disabled.
-    // The parameter to didActivateCompositor() is meaningless.
-    // FIXME: The older definiton of didActivateCompositor (i.e with arguments)
-    // and all its corresponding call is to removed once the dependent chromium
-    // side patch https://codereview.chromium.org/137893025/ lands and all overrides
-    // of older definition are removed from chromium side.
     virtual void didActivateCompositor() { }
-    virtual void didActivateCompositor(int deprecated) { }
     virtual void didDeactivateCompositor() { }
 
     // Attempt to initialize compositing for this widget. If this is successful,
     // layerTreeView() will return a valid WebLayerTreeView.
     virtual void initializeLayerTreeView() { }
 
     // Return a compositing view used for this widget. This is owned by the
     // WebWidgetClient.
     virtual WebLayerTreeView* layerTreeView() { return 0; }
 
@@ skipping 111 matching lines @@
     // modified by script, not by user input.
     virtual void didUpdateTextOfFocusedElementByNonUserInput() { }
 
 protected:
     ~WebWidgetClient() { }
 };
 
 } // namespace blink
 
 #endif