Update menu look and feel on Android

chrome/android/java/res/values/dimens.xml

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright 2014 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.
 -->
 
 <resources>
     <!-- Certificate Viewer Dimensions -->
     <dimen name="certificate_viewer_padding">20dp</dimen>
 
     <!-- Accessibility tab switcher -->
     <dimen name="accessibility_tab_height">65dp</dimen>
 
     <!-- TabSwitcher - The minimum distance from the edge to commit a side swap. -->
     <dimen name="swipe_commit_distance">120dp</dimen>
 
     <!-- Custom Menu dimensions -->
-    <dimen name="menu_width">257dp</dimen>
+    <dimen name="menu_width">260dp</dimen>
     <dimen name="menu_vertical_offset">0dp</dimen>
     <!-- The amount to fade the edges of the menu to indicate more content is available
          via scrolling. -->
     <dimen name="menu_vertical_fade_distance">15dp</dimen>
     
     <!-- Menu button dragging related dimensions -->
     <dimen name="auto_scroll_full_velocity">500dp</dimen>
     <dimen name="edge_swipe_in_slop">25dp</dimen>
     <dimen name="edge_swipe_in_additional_slop">50dp</dimen>
     <dimen name="edge_swipe_out_slop">18dp</dimen>
@@ skipping 36 matching lines @@
     <dimen name="app_banner_title_margin_top">0dp</dimen>
     <dimen name="app_banner_title_margin_bottom">8dp</dimen>
 
     <dimen name="app_banner_logo_height">24dp</dimen>
     <dimen name="app_banner_logo_margin_top">4dp</dimen>
     <dimen name="app_banner_logo_margin_bottom">0dp</dimen>
     <dimen name="app_banner_logo_margin_end">8dp</dimen>
 
     <dimen name="app_banner_star_height">16dp</dimen>
 </resources>