bluetooth: macOS: Remove c-style casting

device/bluetooth/bluetooth_adapter_mac_unittest.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"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
@@ skipping 82 matching lines @@
   }
 
   bool SetMockCentralManager(CBCentralManagerState desired_state) {
     if (!BluetoothAdapterMac::IsLowEnergyAvailable()) {
       LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
       return false;
     }
     mock_central_manager_.reset([[MockCentralManager alloc] init]);
     [mock_central_manager_ setState:desired_state];
     CBCentralManager* centralManager =
-        (CBCentralManager*)mock_central_manager_.get();
+        static_cast<CBCentralManager*>(mock_central_manager_.get());
     adapter_mac_->SetCentralManagerForTesting(centralManager);
     return true;
   }
 
   void AddDiscoverySession(BluetoothDiscoveryFilter* discovery_filter) {
     adapter_mac_->AddDiscoverySession(
         discovery_filter,
         base::Bind(&BluetoothAdapterMacTest::Callback, base::Unretained(this)),
         base::Bind(&BluetoothAdapterMacTest::DiscoveryErrorCallback,
                    base::Unretained(this)));
@@ skipping 135 matching lines @@
   base::scoped_nsobject<NSDictionary> advertisement_data(AdvertisementData());
 
   EXPECT_EQ(0, NumDevices());
   EXPECT_FALSE(DevicePresent(mock_peripheral));
   LowEnergyDeviceUpdated(mock_peripheral, advertisement_data, kTestRssi);
   EXPECT_EQ(1, NumDevices());
   EXPECT_TRUE(DevicePresent(mock_peripheral));
 }
 
 }  // namespace device