Restore focus-state ink drop highlight on buttons after ripple animation

ui/views/animation/ink_drop_impl.h

 // Copyright 2015 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.
 
 #ifndef UI_VIEWS_ANIMATION_INK_DROP_IMPL_H_
 #define UI_VIEWS_ANIMATION_INK_DROP_IMPL_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 89 matching lines @@
                     bool explode);
 
   // Returns true if this ink drop is hovered or focused.
   bool ShouldHighlight() const;
 
   // Starts the |highlight_after_ripple_timer_| timer. This will stop the
   // current
   // |highlight_after_ripple_timer_| instance if it exists.
   void StartHighlightAfterRippleTimer();
 
-  // Stops and destroys the current |highlight_after_ripple_timer_| instance.
-  void StopHighlightAfterRippleTimer();
-
   // Callback for when the |highlight_after_ripple_timer_| fires.
   void HighlightAfterRippleTimerFired();
 
   // The host of the ink drop. Used to poll for information such as whether the
   // highlight should be shown or not.
   InkDropHost* ink_drop_host_;
 
   // The root Layer that parents the InkDropRipple layers and the
   // InkDropHighlight layers. The |root_layer_| is the one that is added and
   // removed from the InkDropHost.
@@ skipping 20 matching lines @@
   // The timer used to delay the highlight fade in after an ink drop ripple
   // animation.
   std::unique_ptr<base::Timer> highlight_after_ripple_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(InkDropImpl);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_ANIMATION_INK_DROP_IMPL_H_