am 5785bc2d: Dismiss system windows when search is launched.

Merge commit '5785bc2dad36c7ad34a548865ba77c04c46ed097'

* commit '5785bc2dad36c7ad34a548865ba77c04c46ed097':
  Dismiss system windows when search is launched.

policy/com/android/internal/policy/impl/PhoneWindow.java

@@ -2508,6 +2508,7 @@ public class PhoneWindow extends Window implements MenuBuilder.Callback {
         if (cb == null) {
             return false;
         } else {
+            sendCloseSystemWindows();
             return cb.onSearchRequested();
         }
     }