Reland of DocumentLoader should commit the load before creating a DocumentWriter

third_party/WebKit/Source/core/loader/FrameLoader.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) Research In Motion Limited 2009. All rights reserved.
  * 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:
  *
@@ skipping 109 matching lines @@
     FrameLoadType loadType() const;
     void setLoadType(FrameLoadType loadType) { m_loadType = loadType; }
 
     FrameLoaderClient* client() const;
 
     void setDefersLoading(bool);
 
     void didExplicitOpen();
 
     // Callbacks from DocumentWriter
-    void didBeginDocument(bool dispatchWindowObjectAvailable);
+    void didInstallNewDocument(bool dispatchWindowObjectAvailable);
+
+    void didBeginDocument();
 
     void receivedFirstData();
 
     String userAgent() const;
 
     void dispatchDidClearWindowObjectInMainWorld();
     void dispatchDidClearDocumentOfWindowObject();
     void dispatchDocumentElementAvailable();
     void runScriptsAtDocumentElementAvailable();
 
@@ skipping 137 matching lines @@
 
     SandboxFlags m_forcedSandboxFlags;
 
     bool m_dispatchingDidClearWindowObjectInMainWorld;
     bool m_protectProvisionalLoader;
 };
 
 } // namespace blink
 
 #endif // FrameLoader_h