Enhanced the InkDropRippleImpl to create/destroy InkDropAnimations as needed.

chrome/browser/ui/views/toolbar/toolbar_button.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/toolbar/toolbar_button.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 126 matching lines @@
 
 void ToolbarButton::OnMouseReleased(const ui::MouseEvent& event) {
   if (IsTriggerableEvent(event) ||
       (event.IsRightMouseButton() && !HitTestPoint(event.location()))) {
     LabelButton::OnMouseReleased(event);
   }
 
   if (IsTriggerableEvent(event))
     show_menu_factory_.InvalidateWeakPtrs();
 
-  ink_drop_animation_controller_->AnimateToState(views::InkDropState::HIDDEN);
+  if (!HitTestPoint(event.location()))
+    ink_drop_animation_controller_->AnimateToState(views::InkDropState::HIDDEN);
 }
 
 void ToolbarButton::OnMouseCaptureLost() {
 }
 
 void ToolbarButton::OnMouseExited(const ui::MouseEvent& event) {
   // Starting a drag results in a MouseExited, we need to ignore it.
   // A right click release triggers an exit event. We want to
   // remain in a PUSHED state until the drop down menu closes.
   if (state_ != STATE_DISABLED && !InDrag() && state_ != STATE_PRESSED)
@@ skipping 183 matching lines @@
     SetState(STATE_NORMAL);
 }
 
 gfx::Point ToolbarButton::CalculateInkDropCenter() const {
   return GetLocalBounds().CenterPoint();
 }
 
 const char* ToolbarButton::GetClassName() const {
   return "ToolbarButton";
 }