Bluetooth: macOS: Adding counter for service discovery callbacks.

device/bluetooth/bluetooth_adapter_mac.mm

 // Copyright 2013 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.
 
 #include "device/bluetooth/bluetooth_adapter_mac.h"
 
 #import <IOBluetooth/objc/IOBluetoothDevice.h>
 #import <IOBluetooth/objc/IOBluetoothHostController.h>
 #include <stddef.h>
 
@@ skipping 632 matching lines @@
 }
 
 void BluetoothAdapterMac::DidConnectPeripheral(CBPeripheral* peripheral) {
   BluetoothLowEnergyDeviceMac* device_mac =
       GetBluetoothLowEnergyDeviceMac(peripheral);
   if (!device_mac) {
     [low_energy_central_manager_ cancelPeripheralConnection:peripheral];
     return;
   }
   device_mac->DidConnectGatt();
-  [device_mac->GetPeripheral() discoverServices:nil];
+  device_mac->DiscoverPrimaryServices();
 }
 
 void BluetoothAdapterMac::DidFailToConnectPeripheral(CBPeripheral* peripheral,
                                                      NSError* error) {
   BluetoothLowEnergyDeviceMac* device_mac =
       GetBluetoothLowEnergyDeviceMac(peripheral);
   if (!device_mac) {
     [low_energy_central_manager_ cancelPeripheralConnection:peripheral];
     return;
   }
@@ skipping 52 matching lines @@
     // hash the probability of this occuring with 10,000 devices
     // simultaneously present is 1e-6 (see
     // https://en.wikipedia.org/wiki/Birthday_problem#Probability_table).  We
     // ignore the second device by returning.
     return true;
   }
   return false;
 }
 
 }  // namespace device