Add MD ink drop ripple to app list button

ui/views/animation/ink_drop_host_view.cc

Index: ui/views/animation/ink_drop_host_view.cc
diff --git a/ui/views/animation/ink_drop_host_view.cc b/ui/views/animation/ink_drop_host_view.cc
index e6b1e424155d41e75056cdf1744fc2e7e2684fcc..c37d78fba2c37a7a3d0cab7e3aec93d985dd4160 100644
--- a/ui/views/animation/ink_drop_host_view.cc
+++ b/ui/views/animation/ink_drop_host_view.cc
@@ -220,14 +220,16 @@ bool InkDropHostView::ShouldShowInkDropForFocus() const {
   return false;
 }
 
-void InkDropHostView::SetHasInkDrop(bool has_an_ink_drop) {
-  if (has_an_ink_drop) {
+void InkDropHostView::SetHasInkDrop(InkDropType ink_drop_type) {
+  if (ink_drop_type == NO_INK_DROP)
+    ink_drop_.reset(new InkDropStub());
+  else
     ink_drop_.reset(new InkDropImpl(this));
+
+  if (ink_drop_type == INK_DROP_WITH_GESTURE_HANDLING)
     gesture_handler_.reset(new InkDropGestureHandler(this, ink_drop_.get()));
-  } else {
+  else
     gesture_handler_.reset();
-    ink_drop_.reset(new InkDropStub());
-  }
 }
 
 }  // namespace views