Replace views::Event with ui::Event.

ash/wm/panel_frame_view.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_PANEL_FRAME_VIEW_H_
 #define ASH_WM_PANEL_FRAME_VIEW_H_
 
 #include "ash/ash_export.h"
 #include "base/basictypes.h"
 #include "ui/aura/aura_export.h"
@@ skipping 24 matching lines @@
                              gfx::Path* window_mask) OVERRIDE;
   virtual void ResetWindowControls() OVERRIDE;
   virtual void UpdateWindowIcon() OVERRIDE;
 
   // Overridden from views::View:
   virtual void Layout() OVERRIDE;
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
 
   // Overridden from views::ButtonListener:
   virtual void ButtonPressed(views::Button* sender,
-                             const views::Event& event) OVERRIDE;
+                             const ui::Event& event) OVERRIDE;
 
   // Child View class describing the panel's title bar behavior
   // and buttons, owned by the view hierarchy
   scoped_ptr<FramePainter> frame_painter_;
   views::ImageButton* close_button_;
   views::ImageButton* minimize_button_;
   gfx::Rect client_view_bounds_;
 
   DISALLOW_COPY_AND_ASSIGN(PanelFrameView);
 };
 
 }
 
 #endif // ASH_WM_PANEL_FRAME_VIEW_H_