Implement MediaSession on top of the WebMediaPlayerDelegate.

content/renderer/media/android/renderer_media_player_manager.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 CONTENT_RENDERER_MEDIA_ANDROID_RENDERER_MEDIA_PLAYER_MANAGER_H_
 #define CONTENT_RENDERER_MEDIA_ANDROID_RENDERER_MEDIA_PLAYER_MANAGER_H_
 
 #include <map>
 #include <string>
 
@@ skipping 31 matching lines @@
   bool OnMessageReceived(const IPC::Message& msg) override;
   void WasHidden() override;
 
   // Initializes a MediaPlayerAndroid object in browser process.
   void Initialize(MediaPlayerHostMsg_Initialize_Type type,
                   int player_id,
                   const GURL& url,
                   const GURL& first_party_for_cookies,
                   int demuxer_client_id,
                   const GURL& frame_url,
-                  bool allow_credentials) override;
+                  bool allow_credentials,
+                  int delegate_id) override;
 
   // Starts the player.
   void Start(int player_id) override;
 
   // Pauses the player.
   // is_media_related_action should be true if this pause is coming from an
   // an action that explicitly pauses the video (user pressing pause, JS, etc.)
   // Otherwise it should be false if Pause is being called due to other reasons
   // (cleanup, freeing resources, etc.)
   void Pause(int player_id, bool is_media_related_action) override;
@@ skipping 84 matching lines @@
   std::map<int, media::RendererMediaPlayerInterface*> media_players_;
 
   int next_media_player_id_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererMediaPlayerManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_RENDERER_MEDIA_PLAYER_MANAGER_H_