Add a function to convert key system into UUID

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 93c355a8a4a99a7956751bb6a5baa92208014feb..10bcf56fe451241e40cf3f5bf478b29a44b00f18 100644
--- a/content/browser/android/media_player_manager_impl.cc
+++ b/content/browser/android/media_player_manager_impl.cc
@@ -486,6 +486,12 @@ void MediaPlayerManagerImpl::RemovePlayer(int player_id) {
   }
 }
 
+void MediaPlayerManagerImpl::AddDrmBridge(int media_keys_id,
+                                          const std::vector<uint8>& uuid) {
+  DCHECK(!GetDrmBridge(media_keys_id));
+  drm_bridges_.push_back(MediaDrmBridge::Create(media_keys_id, uuid));
+}
+
 void MediaPlayerManagerImpl::RemoveDrmBridge(int media_keys_id) {
   for (ScopedVector<MediaDrmBridge>::iterator it = drm_bridges_.begin();
       it != drm_bridges_.end(); ++it) {