Added class BluetoothDeviceMac, returns mac device timing data

device/bluetooth/bluetooth_classic_device_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_classic_device_mac.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 214 matching lines @@
   error_callback.Run(kApiUnavailable);
 }
 
 void BluetoothClassicDeviceMac::CreateGattConnection(
     const GattConnectionCallback& callback,
     const ConnectErrorCallback& error_callback) {
   // TODO(armansito): Implement.
   error_callback.Run(ERROR_UNSUPPORTED_DEVICE);
 }
 
-NSDate* BluetoothClassicDeviceMac::GetLastInquiryUpdate() {
+NSDate* BluetoothClassicDeviceMac::GetLastUpdateTime() const {
   return [device_ getLastInquiryUpdate];
 }
 
 int BluetoothClassicDeviceMac::GetHostTransmitPower(
     BluetoothHCITransmitPowerLevelType power_level_type) const {
   IOBluetoothHostController* controller =
       [IOBluetoothHostController defaultController];
 
   // Bail if the undocumented API is unavailable on this machine.
   SEL selector = @selector(BluetoothHCIReadTransmitPowerLevel:
@@ skipping 13 matching lines @@
   return power_level;
 }
 
 // static
 std::string BluetoothClassicDeviceMac::GetDeviceAddress(
     IOBluetoothDevice* device) {
   return CanonicalizeAddress(base::SysNSStringToUTF8([device addressString]));
 }
 
 }  // namespace device