Revert of Make start/stop loading notifications per-frame

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 104 matching lines @@
         virtual void dispatchDidFinishLoad() = 0;
         virtual void dispatchDidFirstVisuallyNonEmptyLayout() = 0;
 
         virtual NavigationPolicy decidePolicyForNavigation(const ResourceRequest&, DocumentLoader*, NavigationPolicy) = 0;
 
         virtual void dispatchWillRequestResource(FetchRequest*) { }
 
         virtual void dispatchWillSendSubmitEvent(HTMLFormElement*) = 0;
         virtual void dispatchWillSubmitForm(HTMLFormElement*) = 0;
 
-        virtual void didStartLoading(LoadStartType) = 0;
-        virtual void progressEstimateChanged(double progressEstimate) = 0;
-        virtual void didStopLoading() = 0;
+        // Maybe these should go into a ProgressTrackerClient some day
+        virtual void postProgressStartedNotification(LoadStartType) = 0;
+        virtual void postProgressEstimateChangedNotification() = 0;
+        virtual void postProgressFinishedNotification() = 0;
 
         virtual void loadURLExternally(const ResourceRequest&, NavigationPolicy, const String& suggestedName = String()) = 0;
 
         virtual bool navigateBackForward(int offset) const = 0;
 
         // Another page has accessed the initial empty document of this frame.
         // It is no longer safe to display a provisional URL, since a URL spoof
         // is now possible.
         virtual void didAccessInitialDocument() { }
 
@@ skipping 88 matching lines @@
         virtual PassOwnPtr<blink::WebApplicationCacheHost> createApplicationCacheHost(blink::WebApplicationCacheHostClient*) = 0;
 
         virtual void didStopAllLoaders() { }
 
         virtual bool isFrameLoaderClientImpl() const { return false; }
     };
 
 } // namespace WebCore
 
 #endif // FrameLoaderClient_h