hack: make GestureOverlayView measure 0 x 0

This restores the behavior before the "remove View.haveComplexMeasure"
commit. This hack is still needed as GTK doesn't allow unhandled events
to propagate to a sibling in the view hierarchy.

This fixes input events in Flappy Bird

src/api-impl/android/gesture/GestureOverlayView.java

@@ -7,6 +7,7 @@ public class GestureOverlayView extends ViewGroup {
 
 	public GestureOverlayView(Context context) {
 		super(context);
+		haveCustomMeasure = false;  // hack: let it measure 0x0, as GTK doesn't allow events to go through it
 	}
 
 	public void setGestureStrokeType(int type) {