Implement media Cast button in Blink

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 178 matching lines @@
 
 // Clank has connected to the remote device.
 IPC_MESSAGE_ROUTED2(MediaPlayerMsg_ConnectedToRemoteDevice,
                     int /* player_id */,
                     std::string /* remote_playback_message */)
 
 // Clank has disconnected from the remote device.
 IPC_MESSAGE_ROUTED1(MediaPlayerMsg_DisconnectedFromRemoteDevice,
                     int /* player_id */)
 
+// The availability of remote devices has changed
+IPC_MESSAGE_ROUTED2(MediaPlayerMsg_RemoteRouteAvailabilityChanged,
+                    int /* player_id */,
+                    bool /* routes_available */)
+
 // 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.
@@ skipping 30 matching lines @@
 IPC_MESSAGE_ROUTED2(MediaPlayerHostMsg_SetPoster,
                     int /* player_id */,
                     GURL /* poster url */)
 
 // Requests the player to enter fullscreen.
 IPC_MESSAGE_ROUTED1(MediaPlayerHostMsg_EnterFullscreen, int /* player_id */)
 
 // Requests the player to exit fullscreen.
 IPC_MESSAGE_ROUTED1(MediaPlayerHostMsg_ExitFullscreen, int /* player_id */)
 
+// Play the media on a remote device, if possible.
+IPC_MESSAGE_ROUTED1(MediaPlayerHostMsg_RequestRemotePlayback,
+                    int /* demuxer_client_id */)
+
+// Control media playing on a remote device.
+IPC_MESSAGE_ROUTED1(MediaPlayerHostMsg_RequestRemotePlaybackControl,
+                    int /* demuxer_client_id */)
+
 // Requests the player with |player_id| to use the CDM with |cdm_id|.
 IPC_MESSAGE_ROUTED2(MediaPlayerHostMsg_SetCdm,
                     int /* player_id */,
                     int /* cdm_id */);
 
 // Sent after the renderer demuxer has seeked.
 IPC_MESSAGE_CONTROL2(MediaPlayerHostMsg_DemuxerSeekDone,
                      int /* demuxer_client_id */,
                      base::TimeDelta /* actual_browser_seek_time */)
 
@@ skipping 14 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)