Add net log to UploadDataStream.

net/base/elements_upload_data_stream.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_ELEMENTS_UPLOAD_DATA_STREAM_H_
 #define NET_BASE_ELEMENTS_UPLOAD_DATA_STREAM_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 25 matching lines @@
   // std::unique_ptr<UploadDataStream> for ease of use.
   static std::unique_ptr<UploadDataStream> CreateWithReader(
       std::unique_ptr<UploadElementReader> reader,
       int64_t identifier);
 
  private:
   // UploadDataStream implementation.
   bool IsInMemory() const override;
   const std::vector<std::unique_ptr<UploadElementReader>>* GetElementReaders()
       const override;
-  int InitInternal() override;
+  int InitInternal(const net::BoundNetLog& net_log) override;
   int ReadInternal(IOBuffer* buf, int buf_len) override;
   void ResetInternal() override;
 
   // Runs Init() for all element readers.
   // This method is used to implement InitInternal().
   int InitElements(size_t start_index);
 
   // Called when the |index| element finishes initialization. If it succeeded,
   // continues with the |index + 1| element. Calls OnInitCompleted on error or
   // when all elements have been initialized.
@@ skipping 24 matching lines @@
   int read_error_;
 
   base::WeakPtrFactory<ElementsUploadDataStream> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ElementsUploadDataStream);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_ELEMENTS_UPLOAD_DATA_STREAM_H_