bluetooth: macOS: Support for extra didConnectPeripheral event from macOS.

device/bluetooth/bluetooth_device.h

 // Copyright (c) 2012 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_DEVICE_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_DEVICE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 596 matching lines @@
   virtual void DisconnectGatt() = 0;
 
   // Calls any pending callbacks for CreateGattConnection based on result of
   // subclasses actions initiated in CreateGattConnectionImpl or related
   // disconnection events. These may be called at any time, even multiple times,
   // to ensure a change in platform state is correctly tracked.
   //
   // Under normal behavior it is expected that after CreateGattConnectionImpl
   // an platform will call DidConnectGatt or DidFailToConnectGatt, but not
   // DidDisconnectGatt.
-  void DidConnectGatt();
+  virtual void DidConnectGatt();
   void DidFailToConnectGatt(ConnectErrorCode);
   void DidDisconnectGatt(bool notifyDeviceChanged);
 
   // Tracks BluetoothGattConnection instances that act as a reference count
   // keeping the GATT connection open. Instances call Add/RemoveGattConnection
   // at creation & deletion.
   void AddGattConnection(BluetoothGattConnection*);
   void RemoveGattConnection(BluetoothGattConnection*);
 
   // Update last_update_time_ so that the device appears as expired.
@@ skipping 38 matching lines @@
   // Returns a localized string containing the device's bluetooth address and
   // a device type for display when |name_| is empty.
   base::string16 GetAddressWithLocalizedDeviceTypeName() const;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothDevice);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_DEVICE_H_