Removes the grid from ash.

ash/wm/workspace/workspace_manager.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_WORKSPACE_MANAGER_H_
 #define ASH_WM_WORKSPACE_WORKSPACE_MANAGER_H_
 
 #include <vector>
 
 #include "ash/ash_export.h"
@@ skipping 41 matching lines @@
   aura::Window* contents_view() { return contents_view_; }
 
   // Updates the visibility and whether any windows overlap the shelf.
   void UpdateShelfVisibility();
 
   // Invoked when the show state of the specified window changes.
   void ShowStateChanged(aura::Window* window);
 
   // BaseWorkspaceManager overrides:
   virtual bool IsInMaximizedMode() const OVERRIDE;
-  virtual void SetGridSize(int size) OVERRIDE;
-  virtual int GetGridSize() const OVERRIDE;
   virtual WorkspaceWindowState GetWindowState() const OVERRIDE;
   virtual void SetShelf(ShelfLayoutManager* shelf) OVERRIDE;
   virtual void SetActiveWorkspaceByWindow(aura::Window* window) OVERRIDE;
   virtual aura::Window* GetParentForNewWindow(aura::Window* window) OVERRIDE;
 
  private:
   // Enumeration of whether windows should animate or not.
   enum AnimateChangeType {
     ANIMATE,
     DONT_ANIMATE
@@ skipping 63 matching lines @@
   // Owned by the Shell container window LauncherContainer. May be NULL.
   ShelfLayoutManager* shelf_;
 
   DISALLOW_COPY_AND_ASSIGN(WorkspaceManager);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_WORKSPACE_WORKSPACE_MANAGER_H_