Cleaning up MruWindowTracker::BuildWindowList()

ash/wm/mru_window_tracker.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_MRU_WINDOW_TRACKER_H_
 #define ASH_WM_MRU_WINDOW_TRACKER_H_
 
 #include <list>
 #include <vector>
 
@@ skipping 22 matching lines @@
   typedef std::vector<aura::Window*> WindowList;
 
   explicit MruWindowTracker(
       aura::client::ActivationClient* activation_client);
   ~MruWindowTracker() override;
 
   // Returns the set of windows which can be cycled through. This method creates
   // the vector based on the current set of windows across all valid root
   // windows. As a result it is not necessarily the same as the set of
   // windows being iterated over.
-  // If |top_most_at_end| the window list will return in ascending (lowest
-  // window in stacking order first) order instead of the default descending
-  // (top most window first) order.
-  static WindowList BuildWindowList(bool top_most_at_end);
+  // The returned window list will be in descending (top most window first)
+  // order.
+  static WindowList BuildWindowList();
 
   // Returns the set of windows which can be cycled through using the tracked
   // list of most recently used windows.
   WindowList BuildMruWindowList();
 
   // Starts or stops ignoring window activations. If no longer ignoring
   // activations the currently active window is moved to the front of the
   // MRU window list. Used by WindowCycleList to avoid adding all cycled
   // windows to the front of the MRU window list.
   void SetIgnoreActivations(bool ignore);
@@ skipping 17 matching lines @@
   aura::client::ActivationClient* activation_client_;
 
   bool ignore_window_activations_;
 
   DISALLOW_COPY_AND_ASSIGN(MruWindowTracker);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_MRU_WINDOW_TRACKER_H_