Framework for converting embedder uses of WebFrame to WebLocalFrame.

Source/web/WebFrameImpl.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 54 matching lines @@
 class WebPerformance;
 class WebPluginContainerImpl;
 class WebView;
 class WebViewImpl;
 struct WebPrintParams;
 
 template <typename T> class WebVector;
 
 // Implementation of WebFrame, note that this is a reference counted object.
 class WebFrameImpl FINAL
-    : public WebFrame
+    : public WebLocalFrame
     , public RefCounted<WebFrameImpl> {
 public:
     // WebFrame methods:
+    virtual WebLocalFrame* toWebLocalFrame() OVERRIDE { return this; }
     virtual void close() OVERRIDE;
     virtual WebString uniqueName() const OVERRIDE;
     virtual WebString assignedName() const OVERRIDE;
     virtual void setName(const WebString&) OVERRIDE;
     virtual WebVector<WebIconURL> iconURLs(int iconTypesMask) const OVERRIDE;
     virtual void setIsRemote(bool) OVERRIDE;
     virtual void setRemoteWebLayer(WebLayer*) OVERRIDE;
     virtual void setPermissionClient(WebPermissionClient*) OVERRIDE;
     virtual void setSharedWorkerRepositoryClient(WebSharedWorkerRepositoryClient*) OVERRIDE;
     virtual WebSize scrollOffset() const OVERRIDE;
@@ skipping 421 matching lines @@
     // Stores the additional input events offset and scale when device metrics emulation is enabled.
     WebCore::IntSize m_inputEventsOffsetForEmulation;
     float m_inputEventsScaleFactorForEmulation;
 };
 
 DEFINE_TYPE_CASTS(WebFrameImpl, WebFrame, frame, true, true);
 
 } // namespace blink
 
 #endif