Fold RestartLoadingTask() into ReadCallback() as the method is called on the render thread.

webkit/media/buffered_data_source.h

 // Copyright (c) 2012 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 WEBKIT_MEDIA_BUFFERED_DATA_SOURCE_H_
 #define WEBKIT_MEDIA_BUFFERED_DATA_SOURCE_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 77 matching lines @@
   // BufferedResourceLoader for testing.
   virtual BufferedResourceLoader* CreateResourceLoader(
       int64 first_byte_position, int64 last_byte_position);
 
  private:
   friend class BufferedDataSourceTest;
 
   // Task posted to perform actual reading on the render thread.
   void ReadTask(int64 position, int read_size, uint8* read_buffer);
 
-  // Task posted when Stop() is called. Stops |watch_dog_timer_| and
-  // |loader_|, reset Read() variables, and set |stopped_on_render_loop_|
-  // to signal any remaining tasks to stop.
+  // Task posted when Stop() is called. Stops |loader_|, resets Read()
+  // variables, and sets |stopped_on_render_loop_| to signal any remaining
+  // tasks to stop.
   void CleanupTask();
 
-  // Restart resource loading on render thread.
-  void RestartLoadingTask();
-
   // This task uses the current playback rate with the previous playback rate
   // to determine whether we are going from pause to play and play to pause,
   // and signals the buffered resource loader accordingly.
   void SetPlaybackRateTask(float playback_rate);
 
   // Tells |loader_| the bitrate of the media.
   void SetBitrateTask(int bitrate);
 
   // The method that performs actual read. This method can only be executed on
   // the render thread.
@@ skipping 103 matching lines @@
   scoped_refptr<media::MediaLog> media_log_;
 
   DownloadingCB downloading_cb_;
 
   DISALLOW_COPY_AND_ASSIGN(BufferedDataSource);
 };
 
 }  // namespace webkit_media
 
 #endif  // WEBKIT_MEDIA_BUFFERED_DATA_SOURCE_H_