Removes the grid from ash.

ash/wm/workspace/workspace_manager2.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_MANAGER2_H_
 #define ASH_WM_WORKSPACE_WORKSPACE_MANAGER2_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 43 matching lines @@
   // own workspace.
   static bool IsMaximized(aura::Window* window);
   static bool IsMaximizedState(ui::WindowShowState state);
 
   // Returns true if |window| is minimized and will restore to a maximized
   // window.
   static bool WillRestoreMaximized(aura::Window* window);
 
   // BaseWorkspaceManager2 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:
   friend class WorkspaceLayoutManager2;
   friend class WorkspaceManager2Test;
 
   class LayoutManager;
@@ skipping 84 matching lines @@
 
   // The set of workspaces not currently active. Workspaces ended up here in
   // two scenarios:
   // . Prior to adding a window a new worskpace is created for it. The
   //   Workspace is added to this set.
   // . When the maximized window is minimized the workspace is added here.
   // Once any window in the workspace is activated the workspace is moved to
   // |workspaces_|.
   std::set<Workspace2*> pending_workspaces_;
 
-  // See description above setter.
-  int grid_size_;
-
   // Owned by the Shell. May be NULL.
   ShelfLayoutManager* shelf_;
 
   // Whether or not we're in MoveWorkspaceToPendingOrDelete(). As
   // MoveWorkspaceToPendingOrDelete() may trigger another call to
   // MoveWorkspaceToPendingOrDelete() we use this to avoid doing anything if
   // already in MoveWorkspaceToPendingOrDelete().
   bool in_move_;
 
   // Ideally we would delete workspaces when not needed. Unfortunately doing so
@@ skipping 17 matching lines @@
   // See comments in SetUnminimizingWorkspace() for details.
   Workspace2* unminimizing_workspace_;
 
   DISALLOW_COPY_AND_ASSIGN(WorkspaceManager2);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_WORKSPACE_WORKSPACE_MANAGER2_H_