Delete most of rendering/compositing.

sky/engine/web/WebLocalFrameImpl.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 109 matching lines @@
     virtual void extendSelectionAndDelete(int before, int after) override;
     virtual void setCaretVisible(bool) override;
 
     virtual WebString contentAsText(size_t maxChars) const override;
     virtual WebString contentAsMarkup() const override;
     virtual WebString renderTreeAsText(RenderAsTextControls toShow = RenderAsTextNormal) const override;
     virtual WebString markerTextForListItem(const WebElement&) const override;
     virtual WebRect selectionBoundsRect() const override;
 
     virtual bool selectionStartHasSpellingMarkerFor(int from, int length) const override;
-    virtual WebString layerTreeAsText(bool showDebugInfo = false) const override;
 
     static WebLocalFrameImpl* create(WebFrameClient*);
     virtual ~WebLocalFrameImpl();
 
     PassRefPtr<LocalFrame> initializeCoreFrame(FrameHost*);
 
     void createFrameView();
 
     static WebLocalFrameImpl* fromFrame(LocalFrame*);
     static WebLocalFrameImpl* fromFrame(LocalFrame&);
@@ skipping 38 matching lines @@
     // Stores the additional input events offset and scale when device metrics emulation is enabled.
     IntSize m_inputEventsOffsetForEmulation;
     float m_inputEventsScaleFactorForEmulation;
 };
 
 DEFINE_TYPE_CASTS(WebLocalFrameImpl, WebFrame, frame, frame->isWebLocalFrame(), frame.isWebLocalFrame());
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_WEB_WEBLOCALFRAMEIMPL_H_