Remove mojo network service.

mojo/services/network/net_adapters.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 MOJO_SERVICES_NETWORK_NET_ADAPTERS_H_
-#define MOJO_SERVICES_NETWORK_NET_ADAPTERS_H_
-
-#include <stdint.h>
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "mojo/services/network/public/interfaces/network_error.mojom.h"
-#include "net/base/io_buffer.h"
-
-namespace mojo {
-
-// These adapters are used to transfer data between a Mojo pipe and the net
-// library. There are four adapters, one for each end in each direction:
-//
-//   Mojo pipe              Data flow    Network library
-//   ----------------------------------------------------------
-//   MojoToNetPendingBuffer    --->      MojoToNetIOBuffer
-//   NetToMojoPendingBuffer    <---      NetToMojoIOBuffer
-//
-// While the operation is in progress, the Mojo-side objects keep ownership
-// of the Mojo pipe, which in turn is kept alive by the IOBuffer. This allows
-// the request to potentially outlive the object managing the translation.
-
-// Mojo side of a Net -> Mojo copy. The buffer is allocated by Mojo.
-class NetToMojoPendingBuffer
-    : public base::RefCountedThreadSafe<NetToMojoPendingBuffer> {
- public:
-  // Begins a two-phase write to the data pipe.
-  //
-  // On success, MOJO_RESULT_OK will be returned. The ownership of the given
-  // producer handle will be transferred to the new NetToMojoPendingBuffer that
-  // will be placed into *pending, and the size of the buffer will be in
-  // *num_bytes.
-  //
-  // On failure or MOJO_RESULT_SHOULD_WAIT, there will be no change to the
-  // handle, and *pending and *num_bytes will be unused.
-  static MojoResult BeginWrite(ScopedDataPipeProducerHandle* handle,
-                               scoped_refptr<NetToMojoPendingBuffer>* pending,
-                               uint32_t* num_bytes);
-
-  // Called to indicate the buffer is done being written to. Passes ownership
-  // of the pipe back to the caller.
-  ScopedDataPipeProducerHandle Complete(uint32_t num_bytes);
-
-  char* buffer() { return static_cast<char*>(buffer_); }
-
- private:
-  friend class base::RefCountedThreadSafe<NetToMojoPendingBuffer>;
-
-  // Takes ownership of the handle.
-  NetToMojoPendingBuffer(ScopedDataPipeProducerHandle handle, void* buffer);
-  ~NetToMojoPendingBuffer();
-
-  ScopedDataPipeProducerHandle handle_;
-  void* buffer_;
-
-  DISALLOW_COPY_AND_ASSIGN(NetToMojoPendingBuffer);
-};
-
-// Net side of a Net -> Mojo copy. The data will be read from the network and
-// copied into the buffer associated with the pending mojo write.
-class NetToMojoIOBuffer : public net::WrappedIOBuffer {
- public:
-  explicit NetToMojoIOBuffer(NetToMojoPendingBuffer* pending_buffer);
-
- private:
-  ~NetToMojoIOBuffer() override;
-
-  scoped_refptr<NetToMojoPendingBuffer> pending_buffer_;
-};
-
-// Mojo side of a Mojo -> Net copy.
-class MojoToNetPendingBuffer
-    : public base::RefCountedThreadSafe<MojoToNetPendingBuffer> {
- public:
-  // Starts reading from Mojo.
-  //
-  // On success, MOJO_RESULT_OK will be returned. The ownership of the given
-  // consumer handle will be transferred to the new MojoToNetPendingBuffer that
-  // will be placed into *pending, and the size of the buffer will be in
-  // *num_bytes.
-  //
-  // On failure or MOJO_RESULT_SHOULD_WAIT, there will be no change to the
-  // handle, and *pending and *num_bytes will be unused.
-  static MojoResult BeginRead(ScopedDataPipeConsumerHandle* handle,
-                              scoped_refptr<MojoToNetPendingBuffer>* pending,
-                              uint32_t* num_bytes);
-
-  // Indicates the buffer is done being read from. Passes ownership of the pipe
-  // back to the caller. The argument is the number of bytes actually read,
-  // since net may do partial writes, which will result in partial reads from
-  // the Mojo pipe's perspective.
-  ScopedDataPipeConsumerHandle Complete(uint32_t num_bytes);
-
-  const char* buffer() { return static_cast<const char*>(buffer_); }
-
- private:
-  friend class base::RefCountedThreadSafe<MojoToNetPendingBuffer>;
-
-  // Takes ownership of the handle.
-  explicit MojoToNetPendingBuffer(ScopedDataPipeConsumerHandle handle,
-                                  const void* buffer);
-  ~MojoToNetPendingBuffer();
-
-  ScopedDataPipeConsumerHandle handle_;
-  const void* buffer_;
-
-  DISALLOW_COPY_AND_ASSIGN(MojoToNetPendingBuffer);
-};
-
-// Net side of a Mojo -> Net copy. The data will already be in the
-// MojoToNetPendingBuffer's buffer.
-class MojoToNetIOBuffer : public net::WrappedIOBuffer {
- public:
-  explicit MojoToNetIOBuffer(MojoToNetPendingBuffer* pending_buffer);
-
- private:
-  ~MojoToNetIOBuffer() override;
-
-  scoped_refptr<MojoToNetPendingBuffer> pending_buffer_;
-};
-
-// Creates a new Mojo network error object from a net error code.
-NetworkErrorPtr MakeNetworkError(int error_code);
-
-}  // namespace mojo
-
-#endif  // MOJO_SERVICES_NETWORK_NET_ADAPTERS_H_