Fast NTP support for themes, dark themes, favicons.

chrome/browser/resources/local_ntp/local_ntp_fast.css

 /* Copyright 2015 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. */
 
 /* TODO: Need to discuss with NTP folks before we remove font-family from the
  * body tag. */
 body {
   background-attachment: fixed !important;
   background-color: white;
   cursor: default;
@@ skipping 44 matching lines @@
   background: #eee;
 }
 
 #fakebox {
   -webkit-transform: translate3d(0, 0, 0);
   -webkit-transition: -webkit-transform 100ms linear, border-color 100ms linear;
   background-color: #fff;
   border: 1px solid rgb(185, 185, 185);
   border-radius: 1px;
   border-top-color: rgb(160, 160, 160);
-  box-sizing: border-box;
   cursor: text;
   font-size: 18px;
   height: 36px;
   line-height: 36px;
   max-width: 672px;
   position: relative;
-  width: 300px;
+  /* #fakebox width (here and below) should be 2px less than #mv-tiles
+     to account for its border. */
+  width: 298px;
 }
 
 #fakebox:hover {
   border: 1px solid rgb(169, 169, 169);
   border-top-color: rgb(144, 144, 144);
 }
 
 body.fakebox-focused #fakebox {
   border: 1px solid rgb(77, 144, 254);
 }
@@ skipping 211 matching lines @@
 html[dir=rtl] #recent-tabs {
   left: 8px;
   right: auto;
 }
 
 #mv-single {
   border: none;
   height: 100%;
   width: 100%;
 }