Replace views::Event with ui::Event.

ash/wm/custom_frame_view_ash.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 ASH_WM_CUSTOM_FRAME_VIEW_ASH_H_
 #define ASH_WM_CUSTOM_FRAME_VIEW_ASH_H_
 
 #include "ash/ash_export.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/views/controls/button/button.h"  // ButtonListener
@@ skipping 54 matching lines @@
 
   // views::View overrides:
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual void Layout() OVERRIDE;
   virtual std::string GetClassName() const OVERRIDE;
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
   virtual gfx::Size GetMinimumSize() OVERRIDE;
 
   // views::ButtonListener overrides:
   virtual void ButtonPressed(views::Button* sender,
-                             const views::Event& event) OVERRIDE;
+                             const ui::Event& event) OVERRIDE;
 
  private:
   // Height from top of window to top of client area.
   int NonClientTopBorderHeight() const;
 
   // Not owned.
   views::Widget* frame_;
 
   views::ImageButton* maximize_button_;
   views::ImageButton* close_button_;
   views::ImageButton* window_icon_;
 
   scoped_ptr<FramePainter> frame_painter_;
 
   DISALLOW_COPY_AND_ASSIGN(CustomFrameViewAsh);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_CUSTOM_FRAME_VIEW_ASH_H_