Add the SetMediaKeys handler to pass a drm bridge to a MediaSourcePlayer

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 dbcdc714dff5ecffa6b7988d788ce2e40ac8506b..aca5a5bec520022826f9b35d8e2907d517965823 100644
--- a/content/browser/android/media_player_manager_impl.cc
+++ b/content/browser/android/media_player_manager_impl.cc
@@ -508,4 +508,16 @@ void MediaPlayerManagerImpl::RemoveDrmBridge(int media_keys_id) {
   }
 }
 
+void MediaPlayerManagerImpl::OnSetMediaKeys(int player_id, int media_keys_id) {
+  MediaPlayerAndroid* player = GetPlayer(player_id);
+  if (!player)
+    return;
+  MediaDrmBridge* drm_bridge = GetDrmBridge(media_keys_id);
+  if (!drm_bridge)
+    return;
+  // TODO(qinmin): add the logic to decide whether we should create the
+  // fullscreen surface for EME lv1.
+  player->SetDrmBridge(drm_bridge);
+}
+
 }  // namespace content