Remove the Copresence Endpoints API.

components/copresence_endpoints/transports/bluetooth/copresence_socket_bluetooth.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_COPRESENCE_SOCKETS_TRANSPORTS_COPRESENCE_SOCKET_BLUETOOTH_H_
-#define COMPONENTS_COPRESENCE_SOCKETS_TRANSPORTS_COPRESENCE_SOCKET_BLUETOOTH_H_
-
-#include <string>
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "components/copresence_endpoints/copresence_socket.h"
-#include "device/bluetooth/bluetooth_socket.h"
-
-namespace net {
-class IOBuffer;
-}
-
-namespace copresence_endpoints {
-
-// A CopresenceSocketBluetooth is the Bluetooth implementation of a
-// CopresenceSocket. This is currently a thin wrapper around BluetoothSocket.
-class CopresenceSocketBluetooth : public CopresenceSocket {
- public:
-  explicit CopresenceSocketBluetooth(
-      const scoped_refptr<device::BluetoothSocket>& socket);
-  ~CopresenceSocketBluetooth() override;
-
-  // CopresenceSocket overrides:
-  bool Send(const scoped_refptr<net::IOBuffer>& buffer,
-            int buffer_size) override;
-  void Receive(const ReceiveCallback& callback) override;
-
- private:
-  void OnSendComplete(int status);
-  void OnSendError(const std::string& message);
-
-  void OnReceive(int size, scoped_refptr<net::IOBuffer> io_buffer);
-  void OnReceiveError(device::BluetoothSocket::ErrorReason reason,
-                      const std::string& message);
-
-  scoped_refptr<device::BluetoothSocket> socket_;
-  ReceiveCallback receive_callback_;
-
-  bool receiving_;
-
-  base::WeakPtrFactory<CopresenceSocketBluetooth> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(CopresenceSocketBluetooth);
-};
-
-}  // namespace copresence_endpoints
-
-#endif  // COMPONENTS_COPRESENCE_SOCKETS_TRANSPORTS_COPRESENCE_SOCKET_BLUETOOTH_H_