Add didCreateNewDocument() notification

Source/core/loader/FrameLoaderClient.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2012 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 142 matching lines @@
         // placeholder should be substituted instead.
         virtual PassOwnPtrWillBeRawPtr<PluginPlaceholder> createPluginPlaceholder(Document&, const KURL&, const Vector<String>& paramNames, const Vector<String>& paramValues, const String& mimeType, bool loadManually) = 0;
 
         virtual PassRefPtrWillBeRawPtr<Widget> createPlugin(HTMLPlugInElement*, const KURL&, const Vector<String>&, const Vector<String>&, const String&, bool loadManually, DetachedPluginPolicy) = 0;
 
         virtual PassRefPtrWillBeRawPtr<Widget> createJavaAppletWidget(HTMLAppletElement*, const KURL& baseURL, const Vector<String>& paramNames, const Vector<String>& paramValues) = 0;
 
         virtual ObjectContentType objectContentType(const KURL&, const String& mimeType, bool shouldPreferPlugInsForImages) = 0;
 
         virtual void dispatchDidClearWindowObjectInMainWorld() = 0;
+        virtual void dispatchWillReplaceDocumentWhileExecutingJavaScriptURL() = 0;

[Nate Chapin, 2014/11/06 17:27:37]

This feels hacky. I'd feel much better about a didCreateNewDocument() or
similar, called from FrameLoader::didBeginDocument(). That should cover all
cases when the document changes, which would allow the code in the chromium repo
to only InvalidateFrame() in one place (doing so in DidStartProvisionalLoad
feels hacky as well).

[robwu, 2014/11/06 18:13:08]

Done. We will still use two InvalidateFrame() calls though: the new
DidCreateNewDocument plus FrameDetached().

         virtual void documentElementAvailable() = 0;
 
         virtual void didCreateScriptContext(v8::Handle<v8::Context>, int extensionGroup, int worldId) = 0;
         virtual void willReleaseScriptContext(v8::Handle<v8::Context>, int worldId) = 0;
         virtual bool allowScriptExtension(const String& extensionName, int extensionGroup, int worldId) = 0;
 
         virtual void didChangeScrollOffset() { }
         virtual void didUpdateCurrentHistoryItem() { }
         virtual void didRemoveAllPendingStylesheet() { }
 
@@ skipping 47 matching lines @@
         virtual void didStopAllLoaders() { }
 
         virtual void dispatchDidChangeManifest() { }
 
         virtual bool isFrameLoaderClientImpl() const { return false; }
     };
 
 } // namespace blink
 
 #endif // FrameLoaderClient_h