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 2bbb820e84a689dd8f66c2f656354b7d90c9610d..0b4a22800f887a74839e00e7f82ea0230a1e9ad0 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
@@ -21,6 +21,8 @@ class InkDropHostViewTestApi {
   explicit InkDropHostViewTestApi(InkDropHostView* host_view);
   ~InkDropHostViewTestApi();
 
+  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(); }