Move enum MenuAnchorPosition to reduce deps on menu_item_view.h

ash/root_window_controller.cc

 // 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.
 
 #include "ash/root_window_controller.h"
 
 #include <queue>
 #include <vector>
 
 #include "ash/ash_constants.h"
@@ skipping 551 matching lines @@
   if (!menu_model)
     return;
 
   // Background controller may not be set yet if user clicked on status are
   // before initial animation completion. See crbug.com/222218
   if (!wallpaper_controller_.get())
     return;
 
   views::MenuRunner menu_runner(menu_model.get());
   if (menu_runner.RunMenuAt(wallpaper_controller_->widget(),
-          NULL, gfx::Rect(location_in_screen, gfx::Size()),
-          views::MenuItemView::TOPLEFT, source_type,
-          views::MenuRunner::CONTEXT_MENU) ==
+                            NULL,
+                            gfx::Rect(location_in_screen, gfx::Size()),
+                            views::MENU_ANCHOR_TOPLEFT,
+                            source_type,
+                            views::MenuRunner::CONTEXT_MENU) ==
       views::MenuRunner::MENU_DELETED) {
     return;
   }
 
   Shell::GetInstance()->UpdateShelfVisibility();
 }
 
 void RootWindowController::UpdateShelfVisibility() {
   shelf_->shelf_layout_manager()->UpdateVisibilityState();
 }
@@ skipping 445 matching lines @@
   else
     DisableTouchHudProjection();
 }
 
 RootWindowController* GetRootWindowController(
     const aura::Window* root_window) {
   return root_window ? GetRootWindowSettings(root_window)->controller : NULL;
 }
 
 }  // namespace ash