[RemotePlayback] Stop remote playback when disableRemotePlayback is set

chrome/android/java/src/org/chromium/chrome/browser/media/remote/RemoteMediaPlayerController.java

Index: chrome/android/java/src/org/chromium/chrome/browser/media/remote/RemoteMediaPlayerController.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/media/remote/RemoteMediaPlayerController.java b/chrome/android/java/src/org/chromium/chrome/browser/media/remote/RemoteMediaPlayerController.java
index 0f34f4b7809b7649f9d6f0047c867057e5b0e41b..a9350a1c59cc495259e1eec64f13622462f7de37 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/media/remote/RemoteMediaPlayerController.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/media/remote/RemoteMediaPlayerController.java
@@ -203,6 +203,17 @@ public class RemoteMediaPlayerController implements MediaRouteController.UiListe
         showMediaRouteControlDialog(ApplicationStatus.getLastTrackedFocusedActivity());
     }
 
+    /**
+     * Called when a lower layer requests to stop casting the video.
+     * @param player The player to stop remote playback for.
+     */
+    public void requestRemotePlaybackStop(MediaRouteController.MediaStateListener player) {
+        if (mCurrentRouteController == null) return;
+        if (mCurrentRouteController.getMediaStateListener() != player) return;
+
+        mCurrentRouteController.release();
+    }
+
     private void showMediaRouteDialog(MediaStateListener player, MediaRouteController controller,
             Activity activity) {