Removes the grid from ash.

ash/wm/base_layout_manager.h

Index: ash/wm/base_layout_manager.h
diff --git a/ash/wm/base_layout_manager.h b/ash/wm/base_layout_manager.h
index c245940df734a2e3265411e9231c554e22ee6b87..7c059c5ed307ff51172d961639be3f82d03821a2 100644
--- a/ash/wm/base_layout_manager.h
+++ b/ash/wm/base_layout_manager.h
@@ -41,6 +41,12 @@ class ASH_EXPORT BaseLayoutManager : public aura::LayoutManager,
 
   const WindowSet& windows() const { return windows_; }
 
+  // Given a |window| and tentative |restore_bounds|, returns new bounds that
+  // ensure that at least a few pixels of the screen background are visible
+  // outside the edges of the window.
+  static gfx::Rect BoundsWithScreenEdgeVisible(aura::Window* window,
+                                               const gfx::Rect& restore_bounds);
+
   // LayoutManager overrides:
   virtual void OnWindowResized() OVERRIDE;
   virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE;