Implement BluetoothRemoteGattCharacteristicWin::GetDescriptors

device/bluetooth/bluetooth_low_energy_win.h

Index: device/bluetooth/bluetooth_low_energy_win.h
diff --git a/device/bluetooth/bluetooth_low_energy_win.h b/device/bluetooth/bluetooth_low_energy_win.h
index a2bae9e4e6cc4cceb01ee6346b68d0d77c525216..b7d378aa73644390fd2bdb9005e48a1d6e78b2d2 100644
--- a/device/bluetooth/bluetooth_low_energy_win.h
+++ b/device/bluetooth/bluetooth_low_energy_win.h
@@ -153,6 +153,15 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothLowEnergyWrapper {
       scoped_ptr<BTH_LE_GATT_CHARACTERISTIC>* out_included_characteristics,
       USHORT* out_counts);
 
+  // Reads included descriptors of |characteristic| in service with service
+  // device path |service_path|. The result will be stored in
+  // |*out_included_descriptors| and |*out_counts|.
+  virtual HRESULT ReadDescriptorsOfACharacteristic(
+      base::FilePath& service_path,
+      const PBTH_LE_GATT_CHARACTERISTIC characteristic,
+      scoped_ptr<BTH_LE_GATT_DESCRIPTOR>* out_included_descriptors,
+      USHORT* out_counts);
+
  protected:
   BluetoothLowEnergyWrapper();
   virtual ~BluetoothLowEnergyWrapper();