Don't show player controls unless key press is handled

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=200991862

library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerView.java

@@ -681,8 +681,12 @@ public class PlayerView extends FrameLayout {
     }
     }
     boolean isDpadWhenControlHidden =
     boolean isDpadWhenControlHidden =
         isDpadKey(event.getKeyCode()) && useController && !controller.isVisible();
         isDpadKey(event.getKeyCode()) && useController && !controller.isVisible();
+    boolean handled =
+        isDpadWhenControlHidden || dispatchMediaKeyEvent(event) || super.dispatchKeyEvent(event);
+    if (handled) {
       maybeShowController(true);
       maybeShowController(true);
-    return isDpadWhenControlHidden || dispatchMediaKeyEvent(event) || super.dispatchKeyEvent(event);
+    }
+    return handled;
   }
   }
 
 
   /**
   /**