Add MD ink drop ripple to app list button

ui/views/animation/test/ink_drop_host_view_test_api.h

Index: ui/views/animation/test/ink_drop_host_view_test_api.h
diff --git a/ui/views/animation/test/ink_drop_host_view_test_api.h b/ui/views/animation/test/ink_drop_host_view_test_api.h
index 9ec2f53bf5b9a92aa611f7c2799bfec332394275..5621b097126bb75bef5c101833822282ac6b6f00 100644
--- a/ui/views/animation/test/ink_drop_host_view_test_api.h
+++ b/ui/views/animation/test/ink_drop_host_view_test_api.h
@@ -23,6 +23,8 @@ class InkDropHostViewTestApi {
 
   void SetHasInkDrop(bool has_an_ink_drop);
 
+  void SetInkDrop(std::unique_ptr<InkDrop> ink_drop,
+                  bool handles_gesture_events);
   void SetInkDrop(std::unique_ptr<InkDrop> ink_drop);
   InkDrop* ink_drop() { return host_view_->ink_drop(); }