Obliterate legacy cronet API. All of its users have been migrated.

components/cronet/android/wrapped_channel_upload_element_reader.h

-// Copyright 2014 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 COMPONENTS_CRONET_ANDROID_WRAPPED_CHANNEL_UPLOAD_ELEMENT_READER_H_
-#define COMPONENTS_CRONET_ANDROID_WRAPPED_CHANNEL_UPLOAD_ELEMENT_READER_H_
-
-#include <stdint.h>
-
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "components/cronet/android/url_request_adapter.h"
-#include "net/base/completion_callback.h"
-#include "net/base/upload_element_reader.h"
-
-namespace net {
-class IOBuffer;
-}  // namespace net
-
-namespace cronet {
-
-// An UploadElementReader implementation for
-// java.nio.channels.ReadableByteChannel.
-// |channel_| should outlive this class because this class does not take the
-// ownership of the data.
-class WrappedChannelElementReader : public net::UploadElementReader {
- public:
-  WrappedChannelElementReader(
-      scoped_refptr<URLRequestAdapter::URLRequestAdapterDelegate> delegate,
-      uint64_t length);
-  ~WrappedChannelElementReader() override;
-
-  // UploadElementReader overrides:
-  int Init(const net::CompletionCallback& callback) override;
-  uint64_t GetContentLength() const override;
-  uint64_t BytesRemaining() const override;
-  bool IsInMemory() const override;
-  int Read(net::IOBuffer* buf,
-           int buf_length,
-           const net::CompletionCallback& callback) override;
-
- private:
-  const uint64_t length_;
-  uint64_t offset_;
-  scoped_refptr<URLRequestAdapter::URLRequestAdapterDelegate> delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(WrappedChannelElementReader);
-};
-
-}  // namespace cronet
-
-#endif  // COMPONENTS_CRONET_ANDROID_WRAPPED_CHANNEL_UPLOAD_ELEMENT_READER_H_