src/: Update the remaining include paths of string_split.h to its new location.

components/auto_login_parser/auto_login_parser.cc

 // Copyright (c) 2013 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 "components/auto_login_parser/auto_login_parser.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/logging.h"
-#include "base/string_split.h"
+#include "base/strings/string_split.h"
 #include "net/base/escape.h"
 #include "net/url_request/url_request.h"
 
 namespace components {
 namespace auto_login {
 
 namespace {
 
 const char kHeaderName[] = "X-Auto-Login";
 
@@ skipping 53 matching lines @@
 bool ParserHeaderInResponse(net::URLRequest* request,
                             RealmRestriction realm_restriction,
                             HeaderData* header_data) {
   std::string header_string;
   request->GetResponseHeaderByName(kHeaderName, &header_string);
   return ParseHeader(header_string, realm_restriction, header_data);
 }
 
 }  // namespace auto_login
 }  // namespace components