Prepare for remote->local frame swap

Source/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 203 matching lines @@
     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;
 
     // WebLocalFrame methods:
+    virtual void initializeToReplaceRemoteFrame(WebRemoteFrame*) override;
     virtual void sendPings(const WebNode& linkNode, const WebURL& destinationURL) override;
     virtual bool isLoading() const override;
     virtual bool isResourceLoadInProgress() const override;
     virtual void addStyleSheetByURL(const WebString& url) override;
     virtual void navigateToSandboxedMarkup(const WebData& markup) override;
     virtual void sendOrientationChangeEvent() override;
     virtual v8::Handle<v8::Value> executeScriptAndReturnValueForTests(
         const WebScriptSource&) override;
 
     void willDetachParent();
@@ skipping 131 matching lines @@
     GC_PLUGIN_IGNORE("340522")
     Persistent<WebLocalFrameImpl> m_selfKeepAlive;
 #endif
 };
 
 DEFINE_TYPE_CASTS(WebLocalFrameImpl, WebFrame, frame, frame->isWebLocalFrame(), frame.isWebLocalFrame());
 
 } // namespace blink
 
 #endif