Pause EME player whose external surface is stolen by another player

android_webview/native/external_video_surface_container_impl.cc

Index: android_webview/native/external_video_surface_container_impl.cc
diff --git a/android_webview/native/external_video_surface_container_impl.cc b/android_webview/native/external_video_surface_container_impl.cc
index 286a4b77e08446b6682d0e5430a2f7e23b43ab23..84d5ad462651849de4e0f161217c9771d865f85c 100644
--- a/android_webview/native/external_video_surface_container_impl.cc
+++ b/android_webview/native/external_video_surface_container_impl.cc
@@ -43,6 +43,19 @@ 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 = AttachCurrentThread();