net: Move ownership of UploadDataStream from URLRequestHttpJob to URLRequest

net/base/upload_bytes_element_reader.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_BASE_UPLOAD_BYTES_ELEMENT_READER_H_
 #define NET_BASE_UPLOAD_BYTES_ELEMENT_READER_H_
 
 #include "base/compiler_specific.h"
 #include "net/base/upload_element_reader.h"
 
 namespace net {
 
 // An UploadElementReader implementation for bytes.
 class NET_EXPORT_PRIVATE UploadBytesElementReader : public UploadElementReader {
  public:
-  UploadBytesElementReader(const char* bytes, int bytes_length);
+  UploadBytesElementReader(const char* bytes, int length);
   virtual ~UploadBytesElementReader();
 
+  const char* bytes() const { return bytes_; }
+  int length() const { return length_; }
+
   // UploadElementReader overrides:
+  virtual const UploadBytesElementReader* AsBytesReader() const OVERRIDE;
   virtual int Init(const CompletionCallback& callback) OVERRIDE;
   virtual int InitSync() OVERRIDE;
   virtual uint64 GetContentLength() const OVERRIDE;
   virtual uint64 BytesRemaining() const OVERRIDE;
   virtual bool IsInMemory() const OVERRIDE;
   virtual int Read(IOBuffer* buf,
                    int buf_length,
                    const CompletionCallback& callback) OVERRIDE;
   virtual int ReadSync(IOBuffer* buf, int buf_length) OVERRIDE;
 
  private:
   const char* const bytes_;
-  const int bytes_length_;
+  const int length_;
   int offset_;
 
   DISALLOW_COPY_AND_ASSIGN(UploadBytesElementReader);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_UPLOAD_BYTES_ELEMENT_READER_H_