bluetooth: Create base class BluetoothDevice::CreateGattConnection impl.

device/bluetooth/bluetooth_device_win.h

Index: device/bluetooth/bluetooth_device_win.h
diff --git a/device/bluetooth/bluetooth_device_win.h b/device/bluetooth/bluetooth_device_win.h
index 4556af29b0f1ae5657111f8bc5ced0153699aab3..f1019a099282e4430182459835e020a04d4a6ad3 100644
--- a/device/bluetooth/bluetooth_device_win.h
+++ b/device/bluetooth/bluetooth_device_win.h
@@ -40,6 +40,7 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothDeviceWin : public BluetoothDevice {
   uint16 GetDeviceID() const override;
   bool IsPaired() const override;
   bool IsConnected() const override;
+  bool IsGattConnected() const override;
   bool IsConnectable() const override;
   bool IsConnecting() const override;
   UUIDList GetUUIDs() const override;
@@ -88,6 +89,8 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothDeviceWin : public BluetoothDevice {
  protected:
   // BluetoothDevice override
   std::string GetDeviceName() const override;
+  void CreateGattConnectionImpl() override;
+  void DisconnectGatt() override;
 
  private:
   friend class BluetoothAdapterWin;