Enable seek in fullscreen mode for MSE impl on android

content/browser/android/media_player_manager_impl.cc

Index: content/browser/android/media_player_manager_impl.cc
diff --git a/content/browser/android/media_player_manager_impl.cc b/content/browser/android/media_player_manager_impl.cc
index 54622e676d180a5a9ef0d9b0756f467a38918c6b..d1c5e72251ff6f4cf7b61d62b753c81e33890204 100644
--- a/content/browser/android/media_player_manager_impl.cc
+++ b/content/browser/android/media_player_manager_impl.cc
@@ -46,12 +46,14 @@ bool MediaPlayerManagerImpl::OnMessageReceived(const IPC::Message& msg) {
                         DestroyAllMediaPlayers)
     IPC_MESSAGE_HANDLER(MediaPlayerHostMsg_DemuxerReady,
                         OnDemuxerReady)
+    IPC_MESSAGE_HANDLER(MediaPlayerHostMsg_ReadFromDemuxerAck,
+                        OnReadFromDemuxerAck)
+    IPC_MESSAGE_HANDLER(MediaPlayerHostMsg_MediaSeekRequestAck,
+                        OnMediaSeekRequestAck)
 #if defined(GOOGLE_TV)
     IPC_MESSAGE_HANDLER(MediaPlayerHostMsg_NotifyExternalSurface,
                             OnNotifyExternalSurface)
 #endif
-    IPC_MESSAGE_HANDLER(MediaPlayerHostMsg_ReadFromDemuxerAck,
-                        OnReadFromDemuxerAck)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
@@ -241,6 +243,12 @@ void MediaPlayerManagerImpl::OnReadFromDemuxerAck(
     player->ReadFromDemuxerAck(params);
 }
 
+void MediaPlayerManagerImpl::OnMediaSeekRequestAck(int player_id) {
+  MediaPlayerAndroid* player = GetPlayer(player_id);
+  if (player)
+    player->OnSeekRequestAck();
+}
+
 MediaPlayerAndroid* MediaPlayerManagerImpl::GetPlayer(int player_id) {
   for (ScopedVector<MediaPlayerAndroid>::iterator it = players_.begin();
       it != players_.end(); ++it) {
@@ -284,11 +292,17 @@ void MediaPlayerManagerImpl::OnBufferingUpdate(
 }
 
 void MediaPlayerManagerImpl::OnSeekComplete(int player_id,
-                                               base::TimeDelta current_time) {
+                                            base::TimeDelta current_time) {
   Send(new MediaPlayerMsg_MediaSeekCompleted(
       routing_id(), player_id, current_time));
 }
 
+void MediaPlayerManagerImpl::OnMediaSeekRequest(int player_id,
+                                                base::TimeDelta time_to_seek) {
+  Send(new MediaPlayerMsg_MediaSeekRequest(
+      routing_id(), player_id, time_to_seek));
+}
+
 void MediaPlayerManagerImpl::OnError(int player_id, int error) {
   Send(new MediaPlayerMsg_MediaError(routing_id(), player_id, error));
   if (fullscreen_player_id_ != -1)