Remove the mojo serial interfaces and related infrastructure.

device/serial/data_sink_receiver.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 DEVICE_SERIAL_DATA_SINK_RECEIVER_H_
-#define DEVICE_SERIAL_DATA_SINK_RECEIVER_H_
-
-#include <stdint.h>
-
-#include <memory>
-#include <queue>
-
-#include "base/callback.h"
-#include "base/macros.h"
-#include "base/memory/linked_ptr.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "device/serial/buffer.h"
-#include "device/serial/data_stream.mojom.h"
-#include "mojo/public/cpp/bindings/binding.h"
-#include "mojo/public/cpp/system/data_pipe.h"
-
-namespace device {
-
-class DataSinkReceiver : public base::RefCounted<DataSinkReceiver>,
-                         public serial::DataSink {
- public:
-  typedef base::Callback<void(std::unique_ptr<ReadOnlyBuffer>)> ReadyCallback;
-  typedef base::Callback<void(int32_t error)> CancelCallback;
-  typedef base::Callback<void()> ErrorCallback;
-
-  // Constructs a DataSinkReceiver. Whenever the pipe is ready for reading, the
-  // |ready_callback| will be called with the ReadOnlyBuffer to read.
-  // |ready_callback| will not be called again until the previous ReadOnlyBuffer
-  // is destroyed. If a connection error occurs, |error_callback| will be called
-  // and the DataSinkReceiver will act as if ShutDown() had been called. If
-  // |cancel_callback| is valid, it will be called when the DataSink client
-  // requests cancellation of the in-progress read.
-  DataSinkReceiver(mojo::InterfaceRequest<serial::DataSink> request,
-                   const ReadyCallback& ready_callback,
-                   const CancelCallback& cancel_callback,
-                   const ErrorCallback& error_callback);
-
-  // Shuts down this DataSinkReceiver. After shut down, |ready_callback|,
-  // |cancel_callback| and |error_callback| will never be called.
-  void ShutDown();
-
- private:
-  class Buffer;
-  class DataFrame;
-  friend class base::RefCounted<DataSinkReceiver>;
-
-  ~DataSinkReceiver() override;
-
-  // serial::DataSink overrides.
-  void Cancel(int32_t error) override;
-  void OnData(mojo::Array<uint8_t> data,
-              const OnDataCallback& callback) override;
-  void ClearError() override;
-
-  void OnConnectionError();
-
-  // Dispatches data to |ready_callback_|.
-  void RunReadyCallback();
-
-  // Reports a successful read of |bytes_read|.
-  void Done(uint32_t bytes_read);
-
-  // Reports a partially successful or unsuccessful read of |bytes_read|
-  // with an error of |error|.
-  void DoneWithError(uint32_t bytes_read, int32_t error);
-
-  // Marks |bytes_read| bytes as being read.
-  bool DoneInternal(uint32_t bytes_read);
-
-  // Reports an error to the client.
-  void ReportError(uint32_t bytes_read, int32_t error);
-
-  // Reports a fatal error to the client and shuts down.
-  void DispatchFatalError();
-
-  mojo::Binding<serial::DataSink> binding_;
-
-  // The callback to call when there is data ready to read.
-  const ReadyCallback ready_callback_;
-
-  // The callback to call when the client has requested cancellation.
-  const CancelCallback cancel_callback_;
-
-  // The callback to call if a fatal error occurs.
-  const ErrorCallback error_callback_;
-
-  // The current error that has not been cleared by a ClearError message..
-  int32_t current_error_;
-
-  // The buffer passed to |ready_callback_| if one exists. This is not owned,
-  // but the Buffer will call Done or DoneWithError before being deleted.
-  Buffer* buffer_in_use_;
-
-  // The data we have received from the client that has not been passed to
-  // |ready_callback_|.
-  std::queue<linked_ptr<DataFrame>> pending_data_buffers_;
-
-  // Whether we have encountered a fatal error and shut down.
-  bool shut_down_;
-
-  base::WeakPtrFactory<DataSinkReceiver> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(DataSinkReceiver);
-};
-
-}  // namespace device
-
-#endif  // DEVICE_SERIAL_DATA_SINK_RECEIVER_H_