Add more string_util functions to base namespace.

content/test/net/url_request_abort_on_end_job.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.
 // This class simulates what wininet does when a dns lookup fails.
 
 #include <algorithm>
 #include <cstring>
 
 #include "base/compiler_specific.h"
 #include "base/location.h"
@@ skipping 58 matching lines @@
   std::string raw_headers;
   if (base::LowerCaseEqualsASCII(k400AbortOnEndUrl,
                                  request_->url().spec().c_str())) {
     raw_headers.append(
       "HTTP/1.1 400 This is not OK\n"
       "Content-type: text/plain\n");
   } else {
     NOTREACHED();
   }
   // ParseRawHeaders expects \0 to end each header line.
-  ReplaceSubstringsAfterOffset(&raw_headers, 0, "\n", std::string("\0", 1));
+  base::ReplaceSubstringsAfterOffset(
+      &raw_headers, 0, "\n", base::StringPiece("\0", 1));
   info->headers = new net::HttpResponseHeaders(raw_headers);
 }
 
 URLRequestAbortOnEndJob::URLRequestAbortOnEndJob(
     net::URLRequest* request, net::NetworkDelegate* network_delegate)
     : URLRequestJob(request, network_delegate),
       sent_data_(false),
       weak_factory_(this) {
 }
 
@@ skipping 30 matching lines @@
     return true;
   }
 
   SetStatus(net::URLRequestStatus(net::URLRequestStatus::FAILED,
                                   net::ERR_CONNECTION_ABORTED));
   *bytes_read = -1;
   return false;
 }
 
 }  // namespace content