net: Add SetUploadStream method to URLFetcher.

net/url_request/url_fetcher.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.
 
 #ifndef NET_URL_REQUEST_URL_FETCHER_H_
 #define NET_URL_REQUEST_URL_FETCHER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 131 matching lines @@
   // |range_offset| and |range_length| specify the range of the part
   // to be uploaded. To upload the whole file, (0, kuint64max) can be used.
   // |file_task_runner| will be used for all file operations.
   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) = 0;
 
+  // Sets data only needed by POSTs.  All callers making POST requests should
+  // call one of the SetUpload* methods before the request is started.
+  // |upload_content_type| is the MIME type of the content, while
+  // |upload_stream| is the data to be sent (the Content-Length header value
+  // will be set to the length of this data).
+  virtual void SetUploadStream(
+      const std::string& upload_content_type,
+      scoped_ptr<net::UploadDataStream> upload_stream) = 0;

[mmenke, 2014/12/18 15:38:46]

Why is this needed?  This is incompatible with all of the retry stuff, and I'd
rather not have incompatible features unless it's really needed.

+
   // Indicates that the POST data is sent via chunked transfer encoding.
   // This may only be called before calling Start().
   // Use AppendChunkToUpload() to give the data chunks after calling Start().
   virtual void SetChunkedUpload(const std::string& upload_content_type) = 0;
 
   // Adds the given bytes to a request's POST data transmitted using chunked
   // transfer encoding.
   // This method should be called ONLY after calling Start().
   virtual void AppendChunkToUpload(const std::string& data,
                                    bool is_last_chunk) = 0;
@@ skipping 139 matching lines @@
   // be removed once the URLFetcher is destroyed.  User should not take
   // ownership more than once, or call this method after taking ownership.
   virtual bool GetResponseAsFilePath(
       bool take_ownership,
       base::FilePath* out_response_path) const = 0;
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_FETCHER_H_