Update the remaining references to sys_string_conversions.h to its new location.

webkit/fileapi/file_system_dir_url_request_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.
 
 #include "webkit/fileapi/file_system_dir_url_request_job.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_util_proxy.h"
 #include "base/message_loop.h"
 #include "base/platform_file.h"
-#include "base/sys_string_conversions.h"
+#include "base/strings/sys_string_conversions.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 #include "net/url_request/url_request.h"
 #include "webkit/fileapi/file_system_context.h"
 #include "webkit/fileapi/file_system_operation.h"
@@ skipping 117 matching lines @@
     NotifyHeadersComplete();
   }
 }
 
 FileSystemOperation* FileSystemDirURLRequestJob::GetNewOperation(
     base::PlatformFileError* error_code) {
   return file_system_context_->CreateFileSystemOperation(url_, error_code);
 }
 
 }  // namespace fileapi