Revert of Revert of Make start/stop loading notifications per-frame

Source/core/loader/ProgressTracker.h

 /*
  * Copyright (C) 2007 Apple 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 29 matching lines @@
 struct ProgressItem;
 
 // FIXME: This is only used on Android. Android is the only Chrome
 // browser which shows a progress bar during loading.
 // We should find a better way for Android to get this data and remove this!
 class ProgressTracker {
     WTF_MAKE_NONCOPYABLE(ProgressTracker); WTF_MAKE_FAST_ALLOCATED;
 public:
     ~ProgressTracker();
 
-    static PassOwnPtr<ProgressTracker> create();
-    static unsigned long createUniqueIdentifier();
+    static PassOwnPtr<ProgressTracker> create(LocalFrame*);
 
     double estimatedProgress() const;
 
-    void progressStarted(LocalFrame*);
-    void progressCompleted(LocalFrame*);
+    void progressStarted();
+    void progressCompleted();
 
     void incrementProgress(unsigned long identifier, const ResourceResponse&);
     void incrementProgress(unsigned long identifier, const char*, int);
     void completeProgress(unsigned long identifier);
 
     long long totalPageAndResourceBytesToLoad() const { return m_totalPageAndResourceBytesToLoad; }
     long long totalBytesReceived() const { return m_totalBytesReceived; }
 
 private:
-    ProgressTracker();
+    ProgressTracker(LocalFrame*);
 
     void reset();
-    void finalProgressComplete();
 
+    LocalFrame* m_frame;
+    bool m_inProgress;
     long long m_totalPageAndResourceBytesToLoad;
     long long m_totalBytesReceived;
     double m_lastNotifiedProgressValue;
     double m_lastNotifiedProgressTime;
     double m_progressNotificationInterval;
     double m_progressNotificationTimeInterval;
     bool m_finalProgressChangedSent;
     double m_progressValue;
-    RefPtr<LocalFrame> m_originatingProgressFrame;
 
-    int m_numProgressTrackedFrames;
     HashMap<unsigned long, OwnPtr<ProgressItem> > m_progressItems;
 };
 
 }
 
 #endif