Changed sync-internals search to a submit instead of incremental

chrome/browser/resources/sync_internals/sync_search.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. */
 
 #sync-search-query {
-  width: 20em;
+  width: 16em;
 }
 
 #sync-search-query[error] {
   background-color: rgb(255,170,170);
 }
 
 #sync-search-status {
   color: rgb(51,51,51);
   font-style: italic;
 }
@@ skipping 27 matching lines @@
   width: 5px;
 }
 
 #sync-result-details-container {
   -webkit-box-flex: 1;
   height: 100%;
   overflow: auto;
   /* TODO(akalin): Figure out why this is needed, even with box-flex: 1. */
   width: 100%;
 }