Fix menu scroll indicators and highlights overlapping the menu border.

ui/views/controls/menu/menu_config.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 "ui/views/controls/menu/menu_config.h"
 
 #include "base/macros.h"
 #include "ui/views/controls/menu/menu_image_util.h"
+#include "ui/views/round_rect_painter.h"
 
 namespace views {
 
 MenuConfig::MenuConfig()
     : arrow_color(SK_ColorBLACK),
       menu_vertical_border_size(3),
-      menu_horizontal_border_size(0),
+      menu_horizontal_border_size(views::RoundRectPainter::kBorderWidth),
       submenu_horizontal_inset(3),
       item_top_margin(4),
       item_bottom_margin(3),
       item_no_icon_top_margin(4),
       item_no_icon_bottom_margin(4),
       item_left_margin(10),
       label_to_arrow_padding(10),
       arrow_to_edge_padding(5),
       icon_to_label_padding(10),
       check_width(kMenuCheckSize),
@@ skipping 22 matching lines @@
 
 MenuConfig::~MenuConfig() {}
 
 // static
 const MenuConfig& MenuConfig::instance() {
   CR_DEFINE_STATIC_LOCAL(MenuConfig, instance, ());
   return instance;
 }
 
 }  // namespace views