device/bluetooth:Implement Register() for BluetoothAudioSinkChromeOS.

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>
@@ skipping 74 matching lines @@
                                   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();
 
   // Constants used to indicate exceptional error conditions.
   static const char kNoResponseError[];
 
+  // The UUID for Bluetooth audio sink service.

[armansito, 2015/01/29 04:22:55]

This should be "The string representation for the 128-bit UUID for A2DP Sink"

[Miao, 2015/01/29 23:58:37]

Done.

+  static const char kBluetoothAudioSinkUUID[];
+
  protected:
   BluetoothMediaClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BluetoothMediaClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_BLUETOOTH_MEDIA_CLIENT_H_