Refactor DBusThreadManager to split away BT clients.

chromeos/dbus/bluetooth_media_client.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 CHROMEOS_DBUS_BLUETOOTH_MEDIA_CLIENT_H_
-#define CHROMEOS_DBUS_BLUETOOTH_MEDIA_CLIENT_H_
-
-#include <memory>
-#include <string>
-#include <vector>
-
-#include "base/callback.h"
-#include "base/values.h"
-#include "chromeos/chromeos_export.h"
-#include "chromeos/dbus/dbus_client.h"
-#include "dbus/object_path.h"
-#include "dbus/property.h"
-
-namespace chromeos {
-
-// BluetoothMediaClient is used to communicate with the Media interface of a
-// local Bluetooth adapter.
-class CHROMEOS_EXPORT BluetoothMediaClient : public DBusClient {
- public:
-  // Properties used to register a Media Endpoint.
-  struct CHROMEOS_EXPORT EndpointProperties {
-    EndpointProperties();
-    ~EndpointProperties();
-
-    // UUID of the profile implemented by the endpoint.
-    std::string uuid;
-
-    // Assigned codec value supported by the endpoint. The byte should match the
-    // codec specification indicated by the UUID.
-    // Since SBC codec is mandatory for A2DP, the default value of codec should
-    // be 0x00.
-    uint8_t codec;
-
-    // Capabilities of the endpoints. The order of bytes should match the bit
-    // arrangement in the specification indicated by the UUID.
-    std::vector<uint8_t> capabilities;
-  };
-
-  class Observer {
-   public:
-    virtual ~Observer() {}
-
-    // Called when the Media object with object path |object_path| is added to
-    // the system.
-    virtual void MediaAdded(const dbus::ObjectPath& object_path) {}
-
-    // Called when the Media object with object path |object_path| is removed
-    // from the system.
-    virtual void MediaRemoved(const dbus::ObjectPath& object_path) {}
-  };
-
-  // Constants used to indicate exceptional error conditions.
-  static const char kNoResponseError[];
-
-  // The string representation for the 128-bit UUID for A2DP Sink.
-  static const char kBluetoothAudioSinkUUID[];
-
-  ~BluetoothMediaClient() override;
-
-  // The ErrorCallback is used by media API methods to indicate failure.
-  // It receives two arguments: the name of the error in |error_name| and
-  // an optional message in |error_message|.
-  typedef base::Callback<void(const std::string& error_name,
-                              const std::string& error_message)> ErrorCallback;
-
-  // Adds and removes observers for events on all Media objects. Check the
-  // |object_path| parameter of observer methods to determine which Media object
-  // is issuing the event.
-  virtual void AddObserver(Observer* observer) = 0;
-  virtual void RemoveObserver(Observer* observer) = 0;
-
-  // Registers a media endpoint to sender at the D-Bus object path
-  // |endpoint_path|. |properties| specifies profile UUID which the endpoint is
-  // for, Codec implemented by the endpoint and the Capabilities of the
-  // endpoint.
-  virtual void RegisterEndpoint(const dbus::ObjectPath& object_path,
-                                const dbus::ObjectPath& endpoint_path,
-                                const EndpointProperties& properties,
-                                const base::Closure& callback,
-                                const ErrorCallback& error_callback) = 0;
-
-  // Unregisters the media endpoint with the D-Bus object path |endpoint_path|.
-  virtual void UnregisterEndpoint(const dbus::ObjectPath& object_path,
-                                  const dbus::ObjectPath& endpoint_path,
-                                  const base::Closure& callback,
-                                  const ErrorCallback& error_callback) = 0;
-
-  // TODO(mcchou): The RegisterPlayer and UnregisterPlayer methods are not
-  // included, since they are not used. These two methods may be added later.
-
-  static BluetoothMediaClient* Create();
-
- protected:
-  BluetoothMediaClient();
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(BluetoothMediaClient);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROMEOS_DBUS_BLUETOOTH_MEDIA_CLIENT_H_