Remove --ash-disable-overview-mode

ash/wm/window_cycle_list.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_WINDOW_CYCLE_LIST_H_
-#define ASH_WM_WINDOW_CYCLE_LIST_H_
-
-#include <vector>
-
-#include "ash/ash_export.h"
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "ui/aura/window_observer.h"
-
-namespace ash {
-
-// Tracks a set of Windows that can be stepped through. This class is used by
-// the WindowCycleController.
-class ASH_EXPORT WindowCycleList : public aura::WindowObserver {
- public:
-  typedef std::vector<aura::Window*> WindowList;
-
-  enum Direction {
-    FORWARD,
-    BACKWARD
-  };
-
-  explicit WindowCycleList(const WindowList& windows);
-  virtual ~WindowCycleList();
-
-  bool empty() const { return windows_.empty(); }
-
-  // Cycles to the next or previous window based on |direction|.
-  void Step(Direction direction);
-
-  const WindowList& windows() const { return windows_; }
-
- private:
-  // Returns the index of |window| in |windows_| or -1 if it isn't there.
-  int GetWindowIndex(aura::Window* window);
-
-  // aura::WindowObserver overrides:
-  virtual void OnWindowDestroyed(aura::Window* window) OVERRIDE;
-
-  // List of weak pointers to windows to use while cycling with the keyboard.
-  // List is built when the user initiates the gesture (e.g. hits alt-tab the
-  // first time) and is emptied when the gesture is complete (e.g. releases the
-  // alt key).
-  WindowList windows_;
-
-  // Current position in the |windows_| list or -1 if we're not cycling.
-  int current_index_;
-
-  DISALLOW_COPY_AND_ASSIGN(WindowCycleList);
-};
-
-}  // namespace ash
-
-#endif  // ASH_WM_WINDOW_CYCLE_LIST_H_