Implement BluetoothGattNotifySession::Stop on Android, 2nd attempt

device/bluetooth/bluetooth_remote_gatt_characteristic_win.h

Index: device/bluetooth/bluetooth_remote_gatt_characteristic_win.h
diff --git a/device/bluetooth/bluetooth_remote_gatt_characteristic_win.h b/device/bluetooth/bluetooth_remote_gatt_characteristic_win.h
index 549ea205e827b5cbfc0bba39740eeb13953e9211..d94b04584fb14da6965587a216b3b9a183de0ee0 100644
--- a/device/bluetooth/bluetooth_remote_gatt_characteristic_win.h
+++ b/device/bluetooth/bluetooth_remote_gatt_characteristic_win.h
@@ -46,6 +46,8 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothRemoteGattCharacteristicWin
       const std::string& identifier) const override;
   void StartNotifySession(const NotifySessionCallback& callback,
                           const ErrorCallback& error_callback) override;
+  void StopNotifySession(BluetoothGattNotifySession* session,
+                         const base::Closure& callback) override;
   void ReadRemoteCharacteristic(const ValueCallback& callback,
                                 const ErrorCallback& error_callback) override;
   void WriteRemoteCharacteristic(const std::vector<uint8_t>& new_value,
@@ -57,6 +59,15 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothRemoteGattCharacteristicWin
   uint16_t GetAttributeHandle() const;
   BluetoothRemoteGattServiceWin* GetWinService() { return parent_service_; }
 
+ protected:
+  void SubscribeToNotifications(BluetoothRemoteGattDescriptor* ccc_descriptor,
+                                const base::Closure& callback,
+                                const ErrorCallback& error_callback) override;
+  void UnsubscribeFromNotifications(
+      BluetoothRemoteGattDescriptor* ccc_descriptor,
+      const base::Closure& callback,
+      const ErrorCallback& error_callback) override;
+
  private:
   void OnGetIncludedDescriptorsCallback(
       std::unique_ptr<BTH_LE_GATT_DESCRIPTOR> descriptors,