Pass media session id over IPC

content/renderer/media/android/webmediaplayer_android.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_WEBMEDIAPLAYER_ANDROID_H_
 #define CONTENT_RENDERER_MEDIA_ANDROID_WEBMEDIAPLAYER_ANDROID_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 366 matching lines @@
   // Whether loading has progressed since the last call to didLoadingProgress.
   bool did_loading_progress_;
 
   // Manages this object and delegates player calls to the browser process.
   // Owned by RenderFrameImpl.
   RendererMediaPlayerManager* const player_manager_;
 
   // Player ID assigned by the |player_manager_|.
   int player_id_;
 
+  // User created media session id, if any.
+  //
+  // blink::WebMediaSession::DefaultID represents the non web
+  // exposed default media session. User created session ids are
+  // greater than blink::WebMediaSession::DefaultID.
+  const int media_session_id_;
+
   // Current player states.
   blink::WebMediaPlayer::NetworkState network_state_;
   blink::WebMediaPlayer::ReadyState ready_state_;
 
   // GL texture ID allocated to the video.
   unsigned int texture_id_;
 
   // GL texture mailbox for texture_id_ to provide in the VideoFrame, and sync
   // point for when the mailbox was produced.
   gpu::Mailbox texture_mailbox_;
@@ skipping 106 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<WebMediaPlayerAndroid> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerAndroid);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_WEBMEDIAPLAYER_ANDROID_H_