Add ink drop ripple to shelf overflow button

ui/views/controls/button/custom_button.cc

Index: ui/views/controls/button/custom_button.cc
diff --git a/ui/views/controls/button/custom_button.cc b/ui/views/controls/button/custom_button.cc
index 85dc33627b1d853aebe03296affa86e9b96f3618..6461e8d16ac00b2c88ed4330b343b8e324103b41 100644
--- a/ui/views/controls/button/custom_button.cc
+++ b/ui/views/controls/button/custom_button.cc
@@ -470,8 +470,10 @@ void CustomButton::NotifyClick(const ui::Event& event) {
 }
 
 void CustomButton::OnClickCanceled(const ui::Event& event) {
-  AnimateInkDrop(views::InkDropState::HIDDEN,
-                 ui::LocatedEvent::FromIfValid(&event));
+  if (ink_drop()->GetTargetInkDropState() != views::InkDropState::ACTIVATED) {

[bruthig, 2016/07/26 21:24:27]

I think I'd feel better if this were configurable on the InkDropHostView. i.e.
InkDropHostView::should_hide_ripple_on_click_cancel_.

WDYT?

[mohsen, 2016/08/17 05:31:35]

I changed the code such that OnClickCanceled() is not called at all if button is
not in the pressed state. So, this is not needed anymore.

+    AnimateInkDrop(views::InkDropState::HIDDEN,
+                   ui::LocatedEvent::FromIfValid(&event));
+  }
   Button::OnClickCanceled(event);
 }