Added ink drop hover/ripple to menu hosting bookmark buttons.

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 cb36cb77c0f55e96f8a4929f8c8f90d6f9ec2c9e..d655ac34c148bbeff8f95d633a5fb571cc081720 100644
--- a/ui/views/controls/button/custom_button.cc
+++ b/ui/views/controls/button/custom_button.cc
@@ -295,6 +295,10 @@ void CustomButton::ShowContextMenu(const gfx::Point& p,
   // we won't get a mouse exited and reset state. Reset it now to be sure.
   if (state_ != STATE_DISABLED)
     SetState(STATE_NORMAL);
+  if (ink_drop_delegate_) {
+    ink_drop_delegate_->SetHovered(false);
+    ink_drop_delegate_->OnAction(InkDropState::HIDDEN);
+  }
   View::ShowContextMenu(p, source_type);
 }