Remove WebPopupMenuImpl::enterForceCompositingMode

Source/web/WebPopupMenuImpl.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 53 matching lines @@
     WTF_MAKE_FAST_ALLOCATED;
 public:
     // WebWidget functions:
     virtual void close() OVERRIDE FINAL;
     virtual WebSize size() OVERRIDE FINAL { return m_size; }
     virtual void willStartLiveResize() OVERRIDE FINAL;
     virtual void resize(const WebSize&) OVERRIDE FINAL;
     virtual void willEndLiveResize() OVERRIDE FINAL;
     virtual void animate(double frameBeginTime) OVERRIDE FINAL;
     virtual void layout() OVERRIDE FINAL;
-    virtual void enterForceCompositingMode(bool enable) OVERRIDE FINAL;
     virtual void paint(WebCanvas*, const WebRect&) OVERRIDE FINAL;
     virtual void themeChanged() OVERRIDE FINAL;
     virtual bool handleInputEvent(const WebInputEvent&) OVERRIDE FINAL;
     virtual void mouseCaptureLost() OVERRIDE FINAL;
     virtual void setFocus(bool enable) OVERRIDE FINAL;
     virtual bool setComposition(
         const WebString& text,
         const WebVector<WebCompositionUnderline>& underlines,
         int selectionStart, int selectionEnd) OVERRIDE FINAL;
     virtual bool confirmComposition() OVERRIDE FINAL;
@@ skipping 43 matching lines @@
     virtual WebScreenInfo screenInfo() const OVERRIDE FINAL;
 
     // WebCore::FramelessScrollViewClient methods:
     virtual void popupClosed(WebCore::FramelessScrollView*) OVERRIDE FINAL;
 
     WebWidgetClient* m_client;
     WebSize m_size;
 
     WebLayerTreeView* m_layerTreeView;
     OwnPtr<WebContentLayer> m_rootLayer;
-    bool m_isAcceleratedCompositingActive;
 
     WebPoint m_lastMousePosition;
 
     // This is a non-owning ref. The popup will notify us via popupClosed()
     // before it is destroyed.
     WebCore::FramelessScrollView* m_widget;
 };
 
 DEFINE_TYPE_CASTS(WebPopupMenuImpl, WebWidget, widget, widget->isPopupMenu(), widget.isPopupMenu());
 // WebPopupMenuImpl is the only implementation of FramelessScrollViewClient, so
 // no need for further checking.
 DEFINE_TYPE_CASTS(WebPopupMenuImpl, WebCore::FramelessScrollViewClient, client, true, true);
 
 } // namespace blink
 
 #endif