Use a direct include of strings headers in chrome/browser/r*-s*/.

chrome/browser/search_engines/template_url_parser.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 "chrome/browser/search_engines/template_url_parser.h"
 
 #include <algorithm>
 #include <map>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/string_util.h"
 #include "base/strings/string_number_conversions.h"
+#include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/search_engines/search_terms_data.h"
 #include "chrome/browser/search_engines/template_url.h"
 #include "chrome/browser/search_engines/template_url_service.h"
 #include "chrome/common/url_constants.h"
 #include "googleurl/src/gurl.h"
 #include "libxml/parser.h"
 #include "libxml/xmlwriter.h"
 #include "ui/gfx/favicon_size.h"
 
@@ skipping 468 matching lines @@
   memset(&sax_handler, 0, sizeof(sax_handler));
   sax_handler.startElement = &TemplateURLParsingContext::StartElementImpl;
   sax_handler.endElement = &TemplateURLParsingContext::EndElementImpl;
   sax_handler.characters = &TemplateURLParsingContext::CharactersImpl;
   int error = xmlSAXUserParseMemory(&sax_handler, &context, data,
                                     static_cast<int>(length));
   xmlSubstituteEntitiesDefault(last_sub_entities_value);
 
   return error ? NULL : context.GetTemplateURL(profile, show_in_default_list);
 }