[ash-md] Added different highlighting modes to the InkDropImpl.

ui/views/controls/button/checkbox.h

 // Copyright (c) 2012 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_CONTROLS_BUTTON_CHECKBOX_H_
 #define UI_VIEWS_CONTROLS_BUTTON_CHECKBOX_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/strings/string16.h"
 #include "ui/views/controls/button/label_button.h"
 
 class SkPaint;
 
 namespace gfx {
 enum class VectorIconId;
 }
 
 namespace views {
 
-class InkDropHover;
-class InkDropRipple;
-
 // A native themed class representing a checkbox.  This class does not use
 // platform specific objects to replicate the native platforms looks and feel.
 class VIEWS_EXPORT Checkbox : public LabelButton {
  public:
   static const char kViewClassName[];
 
   explicit Checkbox(const base::string16& label);
   ~Checkbox() override;
 
   // Sets a listener for this checkbox. Checkboxes aren't required to have them
@@ skipping 10 matching lines @@
 
   // Overridden from LabelButton:
   void Layout() override;
   const char* GetClassName() const override;
   void GetAccessibleNodeData(ui::AXNodeData* node_data) override;
   void OnPaint(gfx::Canvas* canvas) override;
   void OnFocus() override;
   void OnBlur() override;
   void OnNativeThemeChanged(const ui::NativeTheme* theme) override;
   std::unique_ptr<InkDropRipple> CreateInkDropRipple() const override;
-  std::unique_ptr<InkDropHighlight> CreateInkDropHighlight() const override;
   SkColor GetInkDropBaseColor() const override;
   gfx::ImageSkia GetImage(ButtonState for_state) const override;
 
   // Set the image shown for each button state depending on whether it is
   // [checked] or [focused].
   void SetCustomImage(bool checked,
                       bool focused,
                       ButtonState for_state,
                       const gfx::ImageSkia& image);
 
@@ skipping 16 matching lines @@
 
   // The images for each button node_data.
   gfx::ImageSkia images_[2][2][STATE_COUNT];
 
   DISALLOW_COPY_AND_ASSIGN(Checkbox);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_BUTTON_CHECKBOX_H_