Move enum MenuAnchorPosition to reduce deps on menu_item_view.h

chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc

Index: chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
diff --git a/chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc b/chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
index 20edad94921f837c2df2bb2a35a3cad5cea49b15..c6187f98a8366e2cf0cbbad3d458d8a4ff9c04ef 100644
--- a/chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
+++ b/chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
@@ -44,10 +44,10 @@ RenderViewContextMenuViews* RenderViewContextMenuViews::Create(
 void RenderViewContextMenuViews::RunMenuAt(views::Widget* parent,
                                            const gfx::Point& point,
                                            ui::MenuSourceType type) {
-  views::MenuItemView::AnchorPosition anchor_position =
-      (type == ui::MENU_SOURCE_TOUCH ||
-          type == ui::MENU_SOURCE_TOUCH_EDIT_MENU) ?
-          views::MenuItemView::BOTTOMCENTER : views::MenuItemView::TOPLEFT;
+  views::MenuAnchorPosition anchor_position =
+      (type == ui::MENU_SOURCE_TOUCH || type == ui::MENU_SOURCE_TOUCH_EDIT_MENU)
+          ? views::MENU_ANCHOR_BOTTOMCENTER
+          : views::MENU_ANCHOR_TOPLEFT;
 
   if (menu_runner_->RunMenuAt(parent, NULL, gfx::Rect(point, gfx::Size()),
       anchor_position, type, views::MenuRunner::HAS_MNEMONICS |