Move MaximizeModeWindowManager to the controller

ash/shelf/shelf_layout_manager.h

Index: ash/shelf/shelf_layout_manager.h
diff --git a/ash/shelf/shelf_layout_manager.h b/ash/shelf/shelf_layout_manager.h
index f0acb4224ab569f8305634aeff82e5fedd2ee523..5d4b8095dc4e7b1af1251ad1e12e13f0e731ac28 100644
--- a/ash/shelf/shelf_layout_manager.h
+++ b/ash/shelf/shelf_layout_manager.h
@@ -64,7 +64,6 @@ class ASH_EXPORT ShelfLayoutManager :
     public LockStateObserver,
     public SessionStateObserver {
  public:
-
   // We reserve a small area on the edge of the workspace area to ensure that
   // the resize handle at the edge of the window can be hit.
   static const int kWorkspaceAreaVisibleInset;
@@ -341,10 +340,6 @@ class ASH_EXPORT ShelfLayoutManager :
   // UpdateBoundsAndOpacity() again from SetChildBounds().
   bool updating_bounds_;
 
-  // If true, the shelf gets forced (e.g. by the maximize mode) to be always
-  // visible.
-  bool force_shelf_always_visibile_;
-
   // See description above setter.
   ShelfAutoHideBehavior auto_hide_behavior_;