Pass media session id over IPC

media/blink/renderer_media_player_interface.h

 // Copyright 2016 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 MEDIA_BLINK_RENDERER_MEDIA_PLAYER_INTERFACE_H_
 #define MEDIA_BLINK_RENDERER_MEDIA_PLAYER_INTERFACE_H_
 
 // This file contains interfaces modeled after classes in
 // content/renderer/media/android for the purposes of letting clases in
 // this directory implement and/or interact with those classes.
@@ skipping 69 matching lines @@
 class RendererMediaPlayerManagerInterface {
  public:
   // Initializes a MediaPlayerAndroid object in browser process.
   virtual 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,
-                          int delegate_id) = 0;
+                          int delegate_id,
+                          int media_session_id) = 0;
 
   // Starts the player.
   virtual void Start(int player_id) = 0;
 
   // 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.)
   virtual void Pause(int player_id, bool is_media_related_action) = 0;
@@ skipping 20 matching lines @@
   virtual void RequestRemotePlaybackControl(int player_id) = 0;
 
   // Registers and unregisters a RendererMediaPlayerInterface object.
   virtual int RegisterMediaPlayer(RendererMediaPlayerInterface* player) = 0;
   virtual void UnregisterMediaPlayer(int player_id) = 0;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BLINK_RENDERER_MEDIA_PLAYER_INTERFACE_H_