Remove the mojo serial interfaces and related infrastructure.

device/serial/data_source_sender.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_SOURCE_SENDER_H_
-#define DEVICE_SERIAL_DATA_SOURCE_SENDER_H_
-
-#include <stdint.h>
-
-#include <memory>
-#include <vector>
-
-#include "base/callback.h"
-#include "base/macros.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 {
-
-// A DataSourceSender is an interface between a source of data and a
-// DataSourceClient.
-class DataSourceSender : public base::RefCounted<DataSourceSender>,
-                         public serial::DataSource {
- public:
-  typedef base::Callback<void(std::unique_ptr<WritableBuffer>)> ReadyCallback;
-  typedef base::Callback<void()> ErrorCallback;
-
-  // Constructs a DataSourceSender. Whenever the pipe is ready for writing, the
-  // |ready_callback| will be called with the WritableBuffer to be filled.
-  // |ready_callback| will not be called again until the previous WritableBuffer
-  // is destroyed. If a connection error occurs, |error_callback| will be
-  // called and the DataSourceSender will act as if ShutDown() had been called.
-  DataSourceSender(mojo::InterfaceRequest<serial::DataSource> source,
-                   mojo::InterfacePtr<serial::DataSourceClient> client,
-                   const ReadyCallback& ready_callback,
-                   const ErrorCallback& error_callback);
-
-  // Shuts down this DataSourceSender. After shut down, |ready_callback| and
-  // |error_callback| will never be called.
-  void ShutDown();
-
- private:
-  friend class base::RefCounted<DataSourceSender>;
-  class PendingSend;
-
-  ~DataSourceSender() override;
-
-  // mojo::InterfaceImpl<serial::DataSourceSender> overrides.
-  void Init(uint32_t buffer_size) override;
-  void Resume() override;
-  void ReportBytesReceived(uint32_t bytes_sent) override;
-  // mojo error handler. Calls DispatchFatalError().
-  void OnConnectionError();
-
-  // Gets more data to send to the DataSourceClient.
-  void GetMoreData();
-
-  // Invoked to pass |data| obtained in response to |ready_callback_|.
-  void Done(const std::vector<char>& data);
-
-  // Invoked to pass |data| and |error| obtained in response to
-  // |ready_callback_|.
-  void DoneWithError(const std::vector<char>& data, int32_t error);
-
-  // Dispatches |data| to the client.
-  void DoneInternal(const std::vector<char>& data);
-
-  // Reports a fatal error to the client and shuts down.
-  void DispatchFatalError();
-
-  mojo::Binding<serial::DataSource> binding_;
-  mojo::InterfacePtr<serial::DataSourceClient> client_;
-
-  // The callback to call when the client is ready for more data.
-  ReadyCallback ready_callback_;
-
-  // The callback to call if a fatal error occurs.
-  ErrorCallback error_callback_;
-
-  // The current pending send operation if there is one.
-  std::unique_ptr<PendingSend> pending_send_;
-
-  // The number of bytes available for buffering in the client.
-  uint32_t available_buffer_capacity_;
-
-  // Whether sending is paused due to an error.
-  bool paused_;
-
-  // Whether we have encountered a fatal error and shut down.
-  bool shut_down_;
-
-  base::WeakPtrFactory<DataSourceSender> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(DataSourceSender);
-};
-
-}  // namespace device
-
-#endif  // DEVICE_SERIAL_DATA_SOURCE_SENDER_H_