Hide the status bar and switch into lights-out mode when popup is dimissed.

  Bug: 11119286

Change-Id: I912103f36d27b07cd6fcebc2dae7c2964e883cc8
diff --git a/src/com/android/camera/VideoUI.java b/src/com/android/camera/VideoUI.java
index d255ed7..2a71577 100644
--- a/src/com/android/camera/VideoUI.java
+++ b/src/com/android/camera/VideoUI.java
@@ -150,6 +150,10 @@
             popupDismissed();
             showUI();
             mVideoMenu.popupDismissed(topLevelOnly);
+
+            // Switch back into fullscreen/lights-out mode after popup
+            // is dimissed.
+            mActivity.setSystemBarsVisibility(false);
         }
 
         @Override