Move Touch Feedback flag to ui_base_switches

ash/system/tray/tray_background_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_SYSTEM_TRAY_TRAY_BACKGROUND_VIEW_H_
 #define ASH_SYSTEM_TRAY_TRAY_BACKGROUND_VIEW_H_
 
 #include "ash/ash_export.h"
 #include "ash/shelf/background_animator.h"
 #include "ash/shelf/shelf_types.h"
@@ skipping 168 matching lines @@
   BackgroundAnimator hide_background_animator_;
   BackgroundAnimator hover_background_animator_;
 
   // True if the background gets hovered.
   bool hovered_;
 
   // This variable stores the activation override which will tint the background
   // differently if set to true.
   bool draw_background_as_active_;
 
-  // True if touch view feedback command line flag has been enabled. When
-  // enabled touch gestures will toggle rendering the background as active.
-  bool touch_feedback_enabled_;
-
   scoped_ptr<TrayWidgetObserver> widget_observer_;
   scoped_ptr<TrayEventFilter> tray_event_filter_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayBackgroundView);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_TRAY_BACKGROUND_VIEW_H_