Add CPP API for BLE advertisments.

device/bluetooth/bluetooth_adapter_mac.h

Index: device/bluetooth/bluetooth_adapter_mac.h
diff --git a/device/bluetooth/bluetooth_adapter_mac.h b/device/bluetooth/bluetooth_adapter_mac.h
index 14d5a2b1372f557ade1fb298491598bea1d487b2..08c4fb5e7786cb5671782ed04555aa09316ce01e 100644
--- a/device/bluetooth/bluetooth_adapter_mac.h
+++ b/device/bluetooth/bluetooth_adapter_mac.h
@@ -71,6 +71,10 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothAdapterMac
       const BluetoothAudioSink::Options& options,
       const AcquiredCallback& callback,
       const BluetoothAudioSink::ErrorCallback& error_callback) override;
+  void RegisterAdvertisement(
+      scoped_ptr<BluetoothAdvertisement::Data> advertisement_data,
+      const CreateAdvertisementCallback& callback,
+      const CreateAdvertisementErrorCallback& error_callback) override;
 
   // BluetoothDiscoveryManagerMac::Observer overrides
   void DeviceFound(IOBluetoothDevice* device) override;