Implement BluetoothRemoteGattCharacteristicWin::StartNotifySession and related unit tests

device/bluetooth/bluetooth_low_energy_win.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 DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 158 matching lines @@
       const PBTH_LE_GATT_CHARACTERISTIC characteristic,
       scoped_ptr<BTH_LE_GATT_CHARACTERISTIC_VALUE>* out_value);
 
   // Writes |characteristic| value in service with service device path
   // |service_path| to |*new_value|.
   virtual HRESULT WriteCharacteristicValue(
       base::FilePath& service_path,
       const PBTH_LE_GATT_CHARACTERISTIC characteristic,
       PBTH_LE_GATT_CHARACTERISTIC_VALUE new_value);
 
+  // Register |event_type| of GATT events of the service with service device

[ortuno, 2016/03/07 18:48:45]

Register for GATT events of |event_type|...

[gogerald1, 2016/03/07 22:52:49]

Done.

+  // path |service_path|. |event_parameter| is the event's parameter. |callback|
+  // is the function to be invoked if the event happened. |context| is the input
+  // parameter to be given back through |callback|. |*out_handle| stores the
+  // unique handle in OS for this registration.
+  virtual HRESULT RegisterGattEvents(base::FilePath& service_path,
+                                     BTH_LE_GATT_EVENT_TYPE event_type,
+                                     PVOID event_parameter,
+                                     PFNBLUETOOTH_GATT_EVENT_CALLBACK callback,
+                                     PVOID context,
+                                     BLUETOOTH_GATT_EVENT_HANDLE* out_handle);
+  virtual HRESULT UnregisterGattEvent(BLUETOOTH_GATT_EVENT_HANDLE event_handle);
+
  protected:
   BluetoothLowEnergyWrapper();
   virtual ~BluetoothLowEnergyWrapper();
 };
 
 }  // namespace win
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_H_