Pause EME player whose external surface is stolen by another player

chromecast/browser/android/external_video_surface_container_impl.cc

Index: chromecast/browser/android/external_video_surface_container_impl.cc
diff --git a/chromecast/browser/android/external_video_surface_container_impl.cc b/chromecast/browser/android/external_video_surface_container_impl.cc
index 0bc85ebfd02ced8b4147e2c48644bb91e2a1861e..8951f950fa19ae204b640a24e56b0381537f4020 100644
--- a/chromecast/browser/android/external_video_surface_container_impl.cc
+++ b/chromecast/browser/android/external_video_surface_container_impl.cc
@@ -42,6 +42,19 @@ void ExternalVideoSurfaceContainerImpl::RequestExternalVideoSurface(
       env, jobject_.obj(), static_cast<jint>(player_id));
 }
 
+int ExternalVideoSurfaceContainerImpl::GetCurrentPlayerId() {
+  JNIEnv* env = AttachCurrentThread();
+
+  int current_player = static_cast<int>(
+      Java_ExternalVideoSurfaceContainer_getCurrentPlayerId(
+          env, jobject_.obj()));
+
+  if (current_player < 0)
+    return kInvalidPlayerId;
+  else
+    return current_player;
+}
+
 void ExternalVideoSurfaceContainerImpl::ReleaseExternalVideoSurface(
     int player_id) {
   JNIEnv* env = base::android::AttachCurrentThread();