Make RendererMediaPlayerManager a RenderFrameObserver.

content/common/media/media_player_messages_android.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.
 
 // IPC messages for android media player.
 // Multiply-included message file, hence no include guard.
 
 #include "base/basictypes.h"
 #include "base/time/time.h"
 #include "content/common/content_export.h"
@@ skipping 171 matching lines @@
                     std::string /* remote_playback_message */)
 
 // Clank has disconnected from the remote device.
 IPC_MESSAGE_ROUTED1(MediaPlayerMsg_DisconnectedFromRemoteDevice,
                     int /* player_id */)
 
 // Instructs the video element to enter fullscreen.
 IPC_MESSAGE_ROUTED1(MediaPlayerMsg_RequestFullscreen,
                     int /*player_id */)
 
+// Pauses all video playback.
+IPC_MESSAGE_ROUTED0(MediaPlayerMsg_PauseVideo)
+
 // Messages for controlling the media playback in browser process ----------
 
 // Destroy the media player object.
 IPC_MESSAGE_ROUTED1(MediaPlayerHostMsg_DestroyMediaPlayer,
                     int /* player_id */)
 
 // Destroy all the players.
 IPC_MESSAGE_ROUTED0(MediaPlayerHostMsg_DestroyAllMediaPlayers)
 
 // Initialize a media player object with the given type and player_id. The other
@@ skipping 72 matching lines @@
 
 #if defined(VIDEO_HOLE)
 // Notify the player about the external surface, requesting it if necessary.
 // |is_request| true if the player is requesting the external surface.
 // |rect| the boundary rectangle of the video element.
 IPC_MESSAGE_ROUTED3(MediaPlayerHostMsg_NotifyExternalSurface,
                     int /* player_id */,
                     bool /* is_request */,
                     gfx::RectF /* rect */)
 #endif  // defined(VIDEO_HOLE)