Add ink drop ripple to status tray

ash/common/system/tray/tray_popup_utils.h

 // Copyright 2016 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_TRAY_POPUP_UTILS_H_
 #define ASH_COMMON_SYSTEM_TRAY_TRAY_POPUP_UTILS_H_
 
 #include "ash/common/login_status.h"
 #include "ash/common/system/tray/tray_popup_ink_drop_style.h"
 #include "ash/common/system/tray/tri_view.h"
@@ skipping 150 matching lines @@
   static std::unique_ptr<views::InkDropMask> CreateInkDropMask(
       TrayPopupInkDropStyle ink_drop_style,
       const views::View* host);
 
   // Returns true if it is possible to open WebUI settings in a browser window,
   // i.e., the user is logged in, not on the lock screen, and not in a secondary
   // account flow.
   static bool CanOpenWebUISettings(LoginStatus status);
 
  private:
+  // Returns the effective ink drop insets for |host| according to the
+  // |ink_drop_style|.
+  static gfx::Insets GetInkDropInsets(TrayPopupInkDropStyle ink_drop_style);
+
   // Returns the effective ink drop bounds for |host| according to the
   // |ink_drop_style|.
   static gfx::Rect GetInkDropBounds(TrayPopupInkDropStyle ink_drop_style,
                                     const views::View* host);
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(TrayPopupUtils);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_TRAY_TRAY_POPUP_UTILS_H_