Enhance WebMediaPlayer::buffered() to account for evicted ranges.

media/blink/buffered_resource_loader.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_BLINK_BUFFERED_RESOURCE_LOADER_H_
 #define MEDIA_BLINK_BUFFERED_RESOURCE_LOADER_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 78 matching lines @@
       float playback_rate,
       MediaLog* media_log);
   virtual ~BufferedResourceLoader();
 
   // Start the resource loading with the specified URL and range.
   //
   // |loading_cb| is executed when the loading state has changed.
   // |progress_cb| is executed when additional data has arrived.
   typedef base::Callback<void(Status)> StartCB;
   typedef base::Callback<void(LoadingState)> LoadingStateChangedCB;
-  typedef base::Callback<void(int64)> ProgressCB;
+  typedef base::Callback<void(int64, int64)> ProgressCB;
   void Start(const StartCB& start_cb,
              const LoadingStateChangedCB& loading_cb,
              const ProgressCB& progress_cb,
              blink::WebFrame* frame);
 
   // Stops everything associated with this loader, including active URL loads
   // and pending callbacks.
   //
   // It is safe to delete a BufferedResourceLoader after calling Stop().
   void Stop();
@@ skipping 201 matching lines @@
   float playback_rate_;
 
   scoped_refptr<MediaLog> media_log_;
 
   DISALLOW_COPY_AND_ASSIGN(BufferedResourceLoader);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BLINK_BUFFERED_RESOURCE_LOADER_H_