Delete unused BluetoothAudioSink code.

device/bluetooth/bluez/bluetooth_adapter_bluez.cc

Index: device/bluetooth/bluez/bluetooth_adapter_bluez.cc
diff --git a/device/bluetooth/bluez/bluetooth_adapter_bluez.cc b/device/bluetooth/bluez/bluetooth_adapter_bluez.cc
index 65813eda7865e015002a6a8db6cafbf8c0810539..3af2287feec828962788f14580ec80531ad11651 100644
--- a/device/bluetooth/bluez/bluetooth_adapter_bluez.cc
+++ b/device/bluetooth/bluez/bluetooth_adapter_bluez.cc
@@ -29,7 +29,6 @@
 #include "device/bluetooth/bluetooth_uuid.h"
 #include "device/bluetooth/bluez/bluetooth_adapter_profile_bluez.h"
 #include "device/bluetooth/bluez/bluetooth_advertisement_bluez.h"
-#include "device/bluetooth/bluez/bluetooth_audio_sink_bluez.h"
 #include "device/bluetooth/bluez/bluetooth_device_bluez.h"
 #include "device/bluetooth/bluez/bluetooth_gatt_service_bluez.h"
 #include "device/bluetooth/bluez/bluetooth_local_gatt_characteristic_bluez.h"
@@ -52,7 +51,6 @@
 #endif
 
 using device::BluetoothAdapter;
-using device::BluetoothAudioSink;
 using device::BluetoothDevice;
 using device::BluetoothDiscoveryFilter;
 using device::BluetoothSocket;
@@ -442,24 +440,6 @@ void BluetoothAdapterBlueZ::CreateL2capService(
                  base::Bind(callback, socket), error_callback);
 }
 
-void BluetoothAdapterBlueZ::RegisterAudioSink(
-    const BluetoothAudioSink::Options& options,
-    const device::BluetoothAdapter::AcquiredCallback& callback,
-    const BluetoothAudioSink::ErrorCallback& error_callback) {
-  VLOG(1) << "Registering audio sink";
-  if (!this->IsPresent()) {
-    error_callback.Run(BluetoothAudioSink::ERROR_INVALID_ADAPTER);
-    return;
-  }
-  scoped_refptr<BluetoothAudioSinkBlueZ> audio_sink(
-      new BluetoothAudioSinkBlueZ(this));
-  audio_sink->Register(options,
-                       base::Bind(&BluetoothAdapterBlueZ::OnRegisterAudioSink,
-                                  weak_ptr_factory_.GetWeakPtr(), callback,
-                                  error_callback, audio_sink),
-                       error_callback);
-}
-
 void BluetoothAdapterBlueZ::RegisterAdvertisement(
     std::unique_ptr<device::BluetoothAdvertisement::Data> advertisement_data,
     const CreateAdvertisementCallback& callback,
@@ -854,19 +834,6 @@ void BluetoothAdapterBlueZ::OnRequestDefaultAgentError(
                << ": " << error_message;
 }
 
-void BluetoothAdapterBlueZ::OnRegisterAudioSink(
-    const device::BluetoothAdapter::AcquiredCallback& callback,
-    const device::BluetoothAudioSink::ErrorCallback& error_callback,
-    scoped_refptr<BluetoothAudioSink> audio_sink) {
-  if (!IsPresent()) {
-    VLOG(1) << "Failed to register audio sink, adapter not present";
-    error_callback.Run(BluetoothAudioSink::ERROR_INVALID_ADAPTER);
-    return;
-  }
-  DCHECK(audio_sink.get());
-  callback.Run(audio_sink);
-}
-
 void BluetoothAdapterBlueZ::CreateServiceRecord(
     const BluetoothServiceRecordBlueZ& record,
     const ServiceRecordCallback& callback,