device/bluetooth:Implement Register() for BluetoothAudioSinkChromeOS.

device/bluetooth/bluetooth_audio_sink_chromeos.h

 // Copyright 2015 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_BLUETOOTH_BLUETOOTH_AUDIO_SINK_CHROMEOS_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_AUDIO_SINK_CHROMEOS_H_
 
 #include <stdint.h>
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "chromeos/dbus/bluetooth_media_client.h"
 #include "chromeos/dbus/bluetooth_media_endpoint_service_provider.h"
 #include "chromeos/dbus/bluetooth_media_transport_client.h"
 #include "dbus/file_descriptor.h"
 #include "dbus/object_path.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 #include "device/bluetooth/bluetooth_adapter_chromeos.h"
 #include "device/bluetooth/bluetooth_audio_sink.h"
 #include "device/bluetooth/bluetooth_export.h"
 
 namespace chromeos {
 
+class BluetoothAdapterChromeOS;

[armansito, 2015/01/27 04:38:06]

I don't see you dealing with BluetoothAdapterChromeOS pointers in this header.
Why is this forward declaration necessary?

[Miao, 2015/01/28 02:05:02]

Removed.

+
 class DEVICE_BLUETOOTH_EXPORT BluetoothAudioSinkChromeOS
     : public device::BluetoothAudioSink,
       public device::BluetoothAdapter::Observer,
       public BluetoothMediaClient::Observer,
       public BluetoothMediaTransportClient::Observer,
       public BluetoothMediaEndpointServiceProvider::Delegate {
  public:
   explicit BluetoothAudioSinkChromeOS(BluetoothAdapterChromeOS* adapter);
 
   // device::BluetoothAudioSink overrides.
@@ skipping 44 matching lines @@
  private:
   ~BluetoothAudioSinkChromeOS() override;
 
   // Called when the state property of BluetoothMediaTransport has been updated.
   void StateChanged(device::BluetoothAudioSink::State state);
 
   // Called when the volume property of BluetoothMediaTransport has been
   // updated.
   void VolumeChanged(uint16_t volume);
 
+  // Called when the registration of Media Endpoint Done.

[armansito, 2015/01/27 04:38:06]

s/Done/has succeeded/

[Miao, 2015/01/28 02:05:01]

Done.

+  void OnRegisterSucceeded(const base::Closure& callback);
+
+  // Called when the registration of Media Endpoint failed.
+  void OnRegisterFailed(const BluetoothAudioSink::ErrorCallback& error_back,
+                        const std::string& error_name,
+                        const std::string& error_message);
+
   // Reads from the file descriptor acquired via Media Transport object and
   // notify |observer_| while the audio data is available.
   void ReadFromFD();
 
   // The connection state between the BluetoothAudioSinkChromeOS and the remote
   // device.
   device::BluetoothAudioSink::State state_;
 
   // Indicates whether the adapter is present.
   bool present_;
@@ skipping 40 matching lines @@
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
   base::WeakPtrFactory<BluetoothAudioSinkChromeOS> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothAudioSinkChromeOS);
 };
 
 }  // namespace chromeos
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_AUDIO_SINK_CHROMEOS_H_