[RemotePlayback API] Resolve/reject prompt() properly when the element is 'connected'.

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..ecb0420023c9c6a67f0acac540e0d7a57e41c594 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
@@ -200,7 +200,7 @@ public class RemoteMediaPlayerController implements MediaRouteController.UiListe
         if (mCurrentRouteController == null) return;
         if (mCurrentRouteController.getMediaStateListener() != player) return;
 
-        showMediaRouteControlDialog(ApplicationStatus.getLastTrackedFocusedActivity());
+        showMediaRouteControlDialog(player, ApplicationStatus.getLastTrackedFocusedActivity());
     }
 
     private void showMediaRouteDialog(MediaStateListener player, MediaRouteController controller,
@@ -225,13 +225,12 @@ public class RemoteMediaPlayerController implements MediaRouteController.UiListe
         f.show(fm, "android.support.v7.mediarouter:MediaRouteChooserDialogFragment");
     }
 
-    private void showMediaRouteControlDialog(Activity activity) {
-
+    private void showMediaRouteControlDialog(MediaStateListener player, Activity activity) {
         FragmentManager fm = ((FragmentActivity) activity).getSupportFragmentManager();
         if (fm == null) {
             throw new IllegalStateException("The activity must be a subclass of FragmentActivity");
         }
-        MediaRouteDialogFactory factory = new MediaRouteControllerDialogFactory();
+        MediaRouteDialogFactory factory = new MediaRouteControllerDialogFactory(player);
 
         if (fm.findFragmentByTag(
                 "android.support.v7.mediarouter:MediaRouteControllerDialogFragment") != null) {