[RemotePlayback] Implement 'connecting' state

chrome/browser/media/android/remote/remote_media_player_manager.cc

Index: chrome/browser/media/android/remote/remote_media_player_manager.cc
diff --git a/chrome/browser/media/android/remote/remote_media_player_manager.cc b/chrome/browser/media/android/remote/remote_media_player_manager.cc
index 4ea388bb61f3230009f450861dc926ebd83f9ac3..29e4528972640d7480c1e2fbb8de3d0421bab271 100644
--- a/chrome/browser/media/android/remote/remote_media_player_manager.cc
+++ b/chrome/browser/media/android/remote/remote_media_player_manager.cc
@@ -202,6 +202,10 @@ void RemoteMediaPlayerManager::OnRemoteDeviceUnselected(int player_id) {
   ReplaceRemotePlayerWithLocal(player_id);
 }
 
+void RemoteMediaPlayerManager::OnRemotePlaybackStarted(int player_id) {
+  Send(new MediaPlayerMsg_RemotePlaybackStarted(RoutingID(), player_id));
+}
+
 void RemoteMediaPlayerManager::OnRemotePlaybackFinished(int player_id) {
   ReplaceRemotePlayerWithLocal(player_id);
 }