Make the material design ripple effect more visible on a quick action (single click or single tap)

ui/compositor/test/layer_animator_test_controller.cc

Index: ui/compositor/test/layer_animator_test_controller.cc
diff --git a/ui/compositor/test/layer_animator_test_controller.cc b/ui/compositor/test/layer_animator_test_controller.cc
index 37846aea29cde1bdb8e43781c53595e6a6ed1976..6ec2cf3a42380b7a07015ef27d52be18fd143d87 100644
--- a/ui/compositor/test/layer_animator_test_controller.cc
+++ b/ui/compositor/test/layer_animator_test_controller.cc
@@ -56,4 +56,8 @@ void LayerAnimatorTestController::StartThreadedAnimationsIfNeeded() {
   }
 }
 
+void LayerAnimatorTestController::Step(const base::TimeDelta& duration) {
+  animator_->Step(animator_->last_step_time() + duration);
+}
+
 }  // namespace ui