Removes the grid from ash.

ash/wm/workspace/base_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_BASE_WORKSPACE_MANAGER_H_
 #define ASH_WM_WORKSPACE_BASE_WORKSPACE_MANAGER_H_
 
 #include "ash/ash_export.h"
 #include "ash/wm/workspace/workspace_types.h"
 
 namespace aura {
 class Window;
 }
 
 namespace ash {
 namespace internal {
 
 class ShelfLayoutManager;
 
 // TODO: this is temporary until WorkspaceManager2 is the default.
 class ASH_EXPORT BaseWorkspaceManager {
  public:
   virtual ~BaseWorkspaceManager() {}
 
   // Returns true if in maximized or fullscreen mode.
   virtual bool IsInMaximizedMode() const = 0;
 
-  // Sets the size of the grid. Newly added windows are forced to align to the
-  // size of the grid.
-  virtual void SetGridSize(int size) = 0;
-  virtual int GetGridSize() const = 0;
-
   // Returns the current window state.
   virtual WorkspaceWindowState GetWindowState() const = 0;
 
   virtual void SetShelf(ShelfLayoutManager* shelf) = 0;
 
   // Activates the workspace containing |window|. Does nothing if |window| is
   // NULL or not contained in a workspace.
   virtual void SetActiveWorkspaceByWindow(aura::Window* window) = 0;
 
   // Returns the parent for |window|. This is invoked from StackingController
   // when a new Window is being added.
   virtual aura::Window* GetParentForNewWindow(aura::Window* window) = 0;
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_WORKSPACE_BASE_WORKSPACE_MANAGER_H_