Make start/stop loading notifications per-frame

Source/core/loader/EmptyClients.h

 /*
  * Copyright (C) 2006 Eric Seidel (eric@webkit.org)
  * Copyright (C) 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 2012 Samsung Electronics. 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
@@ skipping 194 matching lines @@
     virtual void dispatchDidFailLoad(const ResourceError&) OVERRIDE { }
     virtual void dispatchDidFinishDocumentLoad() OVERRIDE { }
     virtual void dispatchDidFinishLoad() OVERRIDE { }
     virtual void dispatchDidFirstVisuallyNonEmptyLayout() OVERRIDE { }
 
     virtual NavigationPolicy decidePolicyForNavigation(const ResourceRequest&, DocumentLoader*, NavigationPolicy) OVERRIDE;
 
     virtual void dispatchWillSendSubmitEvent(HTMLFormElement*) OVERRIDE;
     virtual void dispatchWillSubmitForm(HTMLFormElement*) OVERRIDE;
 
-    virtual void postProgressStartedNotification(LoadStartType) OVERRIDE { }
-    virtual void postProgressEstimateChangedNotification() OVERRIDE { }
-    virtual void postProgressFinishedNotification() OVERRIDE { }
+    virtual void didStartLoading(LoadStartType) OVERRIDE { }
+    virtual void progressEstimateChanged(double) OVERRIDE { }
+    virtual void didStopLoading() OVERRIDE { }
 
     virtual void loadURLExternally(const ResourceRequest&, NavigationPolicy, const String& = String()) OVERRIDE { }
 
     virtual PassRefPtr<DocumentLoader> createDocumentLoader(LocalFrame*, const ResourceRequest&, const SubstituteData&) OVERRIDE;
 
     virtual String userAgent(const KURL&) OVERRIDE { return ""; }
 
     virtual String doNotTrackValue() OVERRIDE { return String(); }
 
     virtual void transitionToCommittedForNewPage() OVERRIDE { }
@@ skipping 109 matching lines @@
 public:
     virtual PassOwnPtr<StorageNamespace> createSessionStorageNamespace() OVERRIDE;
     virtual bool canAccessStorage(LocalFrame*, StorageType) const OVERRIDE { return false; }
 };
 
 void fillWithEmptyClients(Page::PageClients&);
 
 }
 
 #endif // EmptyClients_h