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

ash/common/system/tray/actionable_view.h

 // 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.
 
 #ifndef ASH_COMMON_SYSTEM_TRAY_ACTIONABLE_VIEW_H_
 #define ASH_COMMON_SYSTEM_TRAY_ACTIONABLE_VIEW_H_
 
 #include "ash/ash_export.h"
 #include "base/macros.h"
 #include "ui/gfx/geometry/rect.h"
@@ skipping 41 matching lines @@
   // been handled and an action was performed. Returns false otherwise.
   virtual bool PerformAction(const ui::Event& event) = 0;
 
   // Overridden from views::CustomButton.
   const char* GetClassName() const override;
   bool OnKeyPressed(const ui::KeyEvent& event) override;
   void GetAccessibleNodeData(ui::AXNodeData* node_data) override;
   void OnPaint(gfx::Canvas* canvas) override;
   void OnFocus() override;
   void OnBlur() override;
+  std::unique_ptr<views::InkDrop> CreateInkDrop() override;
   std::unique_ptr<views::InkDropRipple> CreateInkDropRipple() const override;
   std::unique_ptr<views::InkDropHighlight> CreateInkDropHighlight()
       const override;
 
   // Overridden from views::ButtonListener.
   void ButtonPressed(Button* sender, const ui::Event& event) override;
 
  private:
   // Used by ButtonPressed() to determine whether |this| has been destroyed as a
   // result of performing the associated action. This is necessary because in
   // the not-destroyed case ButtonPressed() uses member variables.
   bool* destroyed_;
 
   SystemTrayItem* owner_;
 
   base::string16 accessible_name_;
 
   DISALLOW_COPY_AND_ASSIGN(ActionableView);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_TRAY_ACTIONABLE_VIEW_H_