Hides ink ripple when a button drag is started

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 bb4550098ee142bdc6194be9f87886aecb609036..849465c26867638bdcfe101e0ab357b38da708e6 100644
--- a/ui/views/controls/button/custom_button.cc
+++ b/ui/views/controls/button/custom_button.cc
@@ -287,6 +287,12 @@ void CustomButton::ShowContextMenu(const gfx::Point& p,
   View::ShowContextMenu(p, source_type);
 }
 
+void CustomButton::OnDragStarted(const ui::LocatedEvent& event) {
+  Button::OnDragStarted(event);
+  if (ink_drop_delegate_)
+    ink_drop_delegate_->OnAction(InkDropState::HIDDEN);
+}
+
 void CustomButton::OnDragDone() {
   // Only reset the state to normal if the button isn't currently disabled
   // (since disabled buttons may still be able to be dragged).