Use a direct include of strings headers in chrome/common/, part 1.

chrome/common/content_settings_pattern.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/common/content_settings_pattern.h"
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
-#include "base/string_util.h"
 #include "base/strings/string_split.h"
+#include "base/strings/string_util.h"
 #include "chrome/common/content_settings_pattern_parser.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/url_constants.h"
 #include "extensions/common/constants.h"
 #include "googleurl/src/gurl.h"
 #include "googleurl/src/url_canon.h"
 #include "ipc/ipc_message_utils.h"
 #include "net/base/dns_util.h"
 #include "net/base/net_util.h"
 
@@ skipping 652 matching lines @@
   if (!parts.is_port_wildcard && other_parts.is_port_wildcard)
     return ContentSettingsPattern::PREDECESSOR;
 
   int result = parts.port.compare(other_parts.port);
   if (result == 0)
     return ContentSettingsPattern::IDENTITY;
   if (result > 0)
     return ContentSettingsPattern::DISJOINT_ORDER_PRE;
   return ContentSettingsPattern::DISJOINT_ORDER_POST;
 }