fix sizing of inputs in search engine manager

chrome/browser/resources/options/search_engine_manager.css

 /* 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. */
 
 #search-engine-manager-page {
   width: 700px;
 }
 
 .search-engine-list input {
-  -webkit-box-flex: 1;
-  display: -webkit-box;
+  width: 100%;
 }
 
 .search-engine-list > div {
   display: -webkit-box;
 }
 
 .search-engine-list .favicon {
   background-position: center center;
   background-repeat: no-repeat;
   background-size: 16px;
@@ skipping 40 matching lines @@
 .search-engine-list .url-column {
   -webkit-box-align: center;
   display: -webkit-box;
 }
 
 .search-engine-list .url-column :first-child {
   -webkit-box-flex: 1;
 }
 
 .search-engine-list .url-column .list-inline-button {
+  -webkit-margin-start: 1ex;

[Dan Beam, 2014/07/10 22:28:54]

nit: did you mean em?

[Evan Stade, 2014/07/10 22:50:32]

no, this is meant to match L40

   margin-top: 0;
   padding: 1px 6px 2px 6px;
 }
 
 .search-engine-list > :not(:hover):not([editing]) .url-column
     .list-inline-button {
   display: none;
 }
 
 #default-search-engine-list {
   z-index: 2;
 }
 
 #other-search-engine-list {
   z-index: 1;
 }
 
 /* End temporary Make Default button styling */