Removes the grid from ash.

ash/shell.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_SHELL_H_
 #define ASH_SHELL_H_
 
 #include <utility>
 #include <vector>
 
@@ skipping 310 matching lines @@
   internal::ShelfLayoutManager* shelf() const { return shelf_; }
 
   internal::StatusAreaWidget* status_area_widget() const {
     return status_area_widget_;
   }
 
   // Convenience accessor for members of StatusAreaWidget.
   SystemTrayDelegate* tray_delegate();
   SystemTray* system_tray();
 
-  // Returns the size of the grid.
-  int GetGridSize() const;
-
   static void set_initially_hide_cursor(bool hide) {
     initially_hide_cursor_ = hide;
   }
 
   internal::ResizeShadowController* resize_shadow_controller() {
     return resize_shadow_controller_.get();
   }
 
   // Made available for tests.
   internal::ShadowController* shadow_controller() {
@@ skipping 32 matching lines @@
 
   // Initializes the root window and root window controller so that it
   // can host browser windows.
   void InitRootWindowController(internal::RootWindowController* root);
 
   // Initializes the layout managers and event filters specific for
   // primary display.
   void InitLayoutManagersForPrimaryDisplay(
       internal::RootWindowController* root_window_controller);
 
-  // Disables the workspace grid layout.
-  void DisableWorkspaceGridLayout();
-
   // aura::CursorManager::Delegate overrides:
   virtual void SetCursor(gfx::NativeCursor cursor) OVERRIDE;
   virtual void ShowCursor(bool visible) OVERRIDE;
 
   static Shell* instance_;
 
   // If set before the Shell is initialized, the mouse cursor will be hidden
   // when the screen is initially created.
   static bool initially_hide_cursor_;
 
@@ skipping 91 matching lines @@
 
   // Used by ash/shell.
   content::BrowserContext* browser_context_;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_