am 18cfb2a8: Merge "Fixed a bug where a notification had no background" into lmp-dev

* commit '18cfb2a861fd321d27ede37f8f2a53c967ab485d':
  Fixed a bug where a notification had no background

packages/SystemUI/src/com/android/systemui/statusbar/ActivatableNotificationView.java

@@ -263,7 +263,9 @@ public abstract class ActivatableNotificationView extends ExpandableOutlineView
             animator.addListener(new AnimatorListenerAdapter() {
                 @Override
                 public void onAnimationEnd(Animator animation) {
-                    mBackgroundNormal.setVisibility(View.INVISIBLE);
+                    if (mDimmed) {
+                        mBackgroundNormal.setVisibility(View.INVISIBLE);
+                    }
                 }
             });
             animator.reverse();