Revert of Cros Tablet Window management - Split Screen part II

ash/wm/overview/window_selector_controller.h

 // Copyright 2013 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_OVERVIEW_WINDOW_SELECTOR_CONTROLLER_H_
 #define ASH_WM_OVERVIEW_WINDOW_SELECTOR_CONTROLLER_H_
 
 #include <list>
 #include <memory>
 #include <vector>
@@ skipping 31 matching lines @@
   void IncrementSelection(int increment);
 
   // Accepts current selection if any. Returns true if a selection was made,
   // false otherwise.
   bool AcceptSelection();
 
   // Returns true if overview mode is restoring minimized windows so that they
   // are visible during overview mode.
   bool IsRestoringMinimizedWindows() const;
 
-  // Gets the windows list that are shown in the overview windows grids if the
-  // overview mode is active for testing.
-  std::vector<aura::Window*> GetWindowsListInOverviewGridsForTesting();
-
   // WindowSelectorDelegate:
   void OnSelectionEnded() override;
   void AddDelayedAnimationObserver(
       std::unique_ptr<DelayedAnimationObserver> animation) override;
   void RemoveAndDestroyAnimationObserver(
       DelayedAnimationObserver* animation) override;
 
  private:
   friend class WindowSelectorTest;
 
   // Dispatched when window selection begins.
   void OnSelectionStarted();
 
   // Collection of DelayedAnimationObserver objects that own widgets that may be
   // still animating after overview mode ends. If shell needs to shut down while
   // those animations are in progress, the animations are shut down and the
   // widgets destroyed.
   std::vector<std::unique_ptr<DelayedAnimationObserver>> delayed_animations_;
   std::unique_ptr<WindowSelector> window_selector_;
   base::Time last_selection_time_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowSelectorController);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_OVERVIEW_WINDOW_SELECTOR_CONTROLLER_H_