-void DummyControlImplOverride::OnPinch(PinchGesture pinch) { pinchCalled = true; }
-void DummyControlImplOverride::OnPan(PanGesture pan) { panCalled = true; }
-void DummyControlImplOverride::OnTap(TapGesture tap) { tapCalled = true; }
-void DummyControlImplOverride::OnLongPress(LongPressGesture longPress) { longPressCalled = true; }
+void DummyControlImplOverride::OnPinch(const PinchGesture& pinch) { pinchCalled = true; }
+void DummyControlImplOverride::OnPan(const PanGesture& pan) { panCalled = true; }
+void DummyControlImplOverride::OnTap(const TapGesture& tap) { tapCalled = true; }
+void DummyControlImplOverride::OnLongPress(const LongPressGesture& longPress) { longPressCalled = true; }