[DevTools] Cleanup inspector overlay and make it work with virtual viewport.

Source/core/inspector/InspectorPageAgent.h

 /*
  * Copyright (C) 2011 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 128 matching lines @@
     void didScroll();
     void didResizeMainFrame();
     void didRecalculateStyle(int);
     void scriptsEnabled(bool isEnabled);
 
     // Inspector Controller API
     virtual void setFrontend(InspectorFrontend*) OVERRIDE;
     virtual void clearFrontend() OVERRIDE;
     virtual void restore() OVERRIDE;
 
-    void webViewResized(const IntSize&);
-
     // Cross-agents API
     Page* page() { return m_page; }
     LocalFrame* mainFrame();
     String createIdentifier();
     LocalFrame* frameForId(const String& frameId);
     String frameId(LocalFrame*);
     bool hasIdForFrame(LocalFrame*) const;
     String loaderId(DocumentLoader*);
     LocalFrame* findFrameWithSecurityOrigin(const String& originRawString);
     LocalFrame* assertFrame(ErrorString*, const String& frameId);
@@ skipping 41 matching lines @@
 
     bool m_embedderTextAutosizingEnabled;
     double m_embedderFontScaleFactor;
 };
 
 
 } // namespace WebCore
 
 
 #endif // !defined(InspectorPagerAgent_h)