Removes the grid from ash.

ash/wm/workspace/multi_window_resize_controller.h

Index: ash/wm/workspace/multi_window_resize_controller.h
diff --git a/ash/wm/workspace/multi_window_resize_controller.h b/ash/wm/workspace/multi_window_resize_controller.h
index 1fb4b62fccbf6e836675a610008b121c7b6a5cca..ce2f381718fdeacba64fa56fea1e5d35c965d21d 100644
--- a/ash/wm/workspace/multi_window_resize_controller.h
+++ b/ash/wm/workspace/multi_window_resize_controller.h
@@ -51,8 +51,6 @@ class ASH_EXPORT MultiWindowResizeController :
   // Hides the resize widget.
   void Hide();
 
-  void set_grid_size(int grid_size) { grid_size_ = grid_size; }
-
   // MouseWatcherListenre overrides:
   virtual void MouseMovedOutOfHost() OVERRIDE;
 
@@ -166,9 +164,6 @@ class ASH_EXPORT MultiWindowResizeController :
   // Bounds the widget was last shown at in screen coordinates.
   gfx::Rect show_bounds_in_screen_;
 
-  // Size of the grid.
-  int grid_size_;
-
   // Used to detect whether the mouse is over the windows. While
   // |resize_widget_| is non-NULL (ie the widget is showing) we ignore calls
   // to Show().