Support range uploading of a file.

net/url_request/url_fetcher_impl.h

 // 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 file contains URLFetcher, a wrapper around URLRequest that handles
 // low-level details like thread safety, ref counting, and incremental buffer
 // reading.  This is useful for callers who simply want to get the data from a
 // URL and don't care about all the nitty-gritty details.
 //
 // NOTE(willchan): Only one "IO" thread is supported for URLFetcher.  This is a
@@ skipping 22 matching lines @@
                  RequestType request_type,
                  URLFetcherDelegate* d);
   virtual ~URLFetcherImpl();
 
   // URLFetcher implementation:
   virtual void SetUploadData(const std::string& upload_content_type,
                              const std::string& upload_content) OVERRIDE;
   virtual void SetUploadFilePath(
       const std::string& upload_content_type,
       const base::FilePath& file_path,
+      uint64 range_offset,
+      uint64 range_length,
       scoped_refptr<base::TaskRunner> file_task_runner) OVERRIDE;
   virtual void SetChunkedUpload(
       const std::string& upload_content_type) OVERRIDE;
   virtual void AppendChunkToUpload(const std::string& data,
                                    bool is_last_chunk) OVERRIDE;
   virtual void SetLoadFlags(int load_flags) OVERRIDE;
   virtual int GetLoadFlags() const OVERRIDE;
   virtual void SetReferrer(const std::string& referrer) OVERRIDE;
   virtual void SetExtraRequestHeaders(
       const std::string& extra_request_headers) OVERRIDE;
@@ skipping 64 matching lines @@
   static int GetNumFetcherCores();
 
   const scoped_refptr<URLFetcherCore> core_;
 
   DISALLOW_COPY_AND_ASSIGN(URLFetcherImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_FETCHER_IMPL_H_