Removes the grid from ash.

ash/wm/workspace/workspace2.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_WORKSPACE_WORKSPACE2_H_
 #define ASH_WM_WORKSPACE_WORKSPACE2_H_
 
 #include <vector>
 
 #include "ash/ash_export.h"
@@ skipping 25 matching lines @@
 
   // Resets state. This should be used before destroying the Workspace.
   aura::Window* ReleaseWindow();
 
   bool is_maximized() const { return is_maximized_; }
 
   aura::Window* window() { return window_; }
 
   WorkspaceManager2* workspace_manager() { return workspace_manager_; }
 
-  void SetGridSize(int grid_size);
-
   // Returns true if the Workspace should be moved to pending. This is true
   // if there are no visible maximized windows.
   bool ShouldMoveToPending() const;
 
   // Returns the number of maximized windows (including minimized windows that
   // would be maximized on restore). This does not consider visibility.
   int GetNumMaximizedWindows() const;
 
  private:
   // Is this a workspace for maximized windows?
   const bool is_maximized_;
 
   WorkspaceManager2* workspace_manager_;
 
   // Our Window, owned by |parent| passed to the constructor.
   aura::Window* window_;
 
   // Owned by |window_|.
   WorkspaceEventFilter* event_filter_;
 
   DISALLOW_COPY_AND_ASSIGN(Workspace2);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_WORKSPACE_WORKSPACE2_H_