Add MD ink drop ripple to app list button

ui/views/animation/test/ink_drop_host_view_test_api.cc

Index: ui/views/animation/test/ink_drop_host_view_test_api.cc
diff --git a/ui/views/animation/test/ink_drop_host_view_test_api.cc b/ui/views/animation/test/ink_drop_host_view_test_api.cc
index a97628bfab077d2eb02542bfc5ae14f5e9f5bb3d..af35104ef87e3ffdae6ae75220dbf280c9c5ac8c 100644
--- a/ui/views/animation/test/ink_drop_host_view_test_api.cc
+++ b/ui/views/animation/test/ink_drop_host_view_test_api.cc
@@ -13,7 +13,8 @@ InkDropHostViewTestApi::InkDropHostViewTestApi(InkDropHostView* host_view)
 InkDropHostViewTestApi::~InkDropHostViewTestApi() {}
 
 void InkDropHostViewTestApi::SetInkDrop(std::unique_ptr<InkDrop> ink_drop) {
-  host_view_->SetHasInkDrop(true);
+  if (!host_view_->ink_drop_)

[bruthig, 2016/06/22 19:07:29]

This should never result in true, InkDropHostViews should always have an
|ink_drop_| instance.

Perhaps we need a SetInkDrop(std::unique_ptr<InkDrop> ink_drop, bool
handles_gesture_event) overload?

+    host_view_->SetHasInkDrop(true);
   host_view_->ink_drop_ = std::move(ink_drop);
 }