Lots of files touched for a very simple change. Everywhere we used a const M...

chrome/renderer/media/data_source_impl.h

 // Copyright (c) 2009 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.
 //
 // A Chrome specific data source for video stack pipeline. The actual resource
 // loading would happen in the browser process. This class is given a file
 // handle and will ask for progress of downloading from RenderView which
 // delegates requests to browser process through IPC. Asynchronous IO will be
 // performed on the file handle.
 //
@@ skipping 118 matching lines @@
   // media::MediaFilter implementation.
   virtual void Stop();
 
   // Methods called from demuxer thread ---------------------------------------
   // media::DataSource implementation.
   virtual size_t Read(uint8* data, size_t size);
   virtual bool GetPosition(int64* position_out);
   virtual bool SetPosition(int64 position);
   virtual bool GetSize(int64* size_out);
 
-  const media::MediaFormat* GetMediaFormat();
+  const media::MediaFormat& media_format();
 
  private:
   friend class media::FilterFactoryImpl1<DataSourceImpl,
                                          WebMediaPlayerDelegateImpl*>;
 
   // Methods called from render thread ----------------------------------------
   explicit DataSourceImpl(WebMediaPlayerDelegateImpl* delegate);
   virtual ~DataSourceImpl();
 
   // Tasks to be posted on render thread.
   void OnInitialize(std::string uri);
   void OnCancel();
 
   // Methods called from IO thread --------------------------------------------
   // Handlers for file reading.
   void OnCreateFileStream(base::PlatformFile file);
   void OnReadFileStream(uint8* data, size_t size);
   void OnCloseFileStream();
   void OnSeekFileStream(net::Whence whence, int64 position);
   void OnDidFileStreamRead(int size);
 
   media::MediaFormat media_format_;
 
   // Pointer to the delegate which provides access to RenderView, this is set
   // in construction and can be accessed in all threads safely.
   WebMediaPlayerDelegateImpl* delegate_;
 
-  // Message loop of render thread.     
+  // Message loop of render thread.
   MessageLoop* render_loop_;
 
   // A common lock for protecting members accessed by multiple threads.
   Lock lock_;
 
   // A flag that indicates whether this object has been called to stop.
   bool stopped_;
 
-  // URI to the resource being downloaded.      
+  // URI to the resource being downloaded.
   std::string uri_;
 
   // Members for keeping track of downloading progress.
   base::WaitableEvent download_event_;
   int64 downloaded_bytes_;
   int64 total_bytes_;
   bool total_bytes_known_;
 
   // Members related to resource loading with RenderView.
   webkit_glue::ResourceLoaderBridge* resource_loader_bridge_;
   base::WaitableEvent resource_release_event_;
 
   // Members used for reading.
   base::WaitableEvent read_event_;
   net::CompletionCallbackImpl<DataSourceImpl> read_callback_;
   scoped_ptr<net::FileStream> stream_;
   size_t last_read_size_;
   int64 position_;
   MessageLoop* io_loop_;
 
   // Events for other operations on stream_.
   base::WaitableEvent close_event_;
   base::WaitableEvent seek_event_;
 
   DISALLOW_COPY_AND_ASSIGN(DataSourceImpl);
 };
 
 #endif  // CHROME_RENDERER_MEDIA_DATA_SOURCE_IMPL_H_