NOT FOR LANDING Implement WebMediaSession

media/base/android/media_player_android.cc

Index: media/base/android/media_player_android.cc
diff --git a/media/base/android/media_player_android.cc b/media/base/android/media_player_android.cc
index ec0fe6af49536a68844331439b92000a753c0998..4893089436f1d41f32b55cdb54e940239c42e14d 100644
--- a/media/base/android/media_player_android.cc
+++ b/media/base/android/media_player_android.cc
@@ -17,12 +17,14 @@ MediaPlayerAndroid::MediaPlayerAndroid(
     int player_id,
     MediaPlayerManager* manager,
     const OnDecoderResourcesReleasedCB& on_decoder_resources_released_cb,
-    const GURL& frame_url)
+    const GURL& frame_url,
+    int session_id)
     : on_decoder_resources_released_cb_(on_decoder_resources_released_cb),
       player_id_(player_id),
       manager_(manager),
       frame_url_(frame_url),
-      weak_factory_(this) {
+      weak_factory_(this),
+      session_id_(session_id) {
   listener_.reset(new MediaPlayerListener(base::ThreadTaskRunnerHandle::Get(),
                                           weak_factory_.GetWeakPtr()));
 }