Geolocation cleanup: use unique_ptr<>s and rename New{WlanApi/PollingPolicy} to CreateBla()

device/geolocation/wifi_data_provider_mac.mm

 // Copyright 2016 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/geolocation/wifi_data_provider_mac.h"
 
 #import <CoreWLAN/CoreWLAN.h>
 #import <Foundation/Foundation.h>
 
 #include "base/mac/scoped_nsautorelease_pool.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/sys_string_conversions.h"
 #include "device/geolocation/wifi_data_provider_common.h"
 #include "device/geolocation/wifi_data_provider_manager.h"
 
 extern "C" NSString* const kCWScanKeyMerge;
 
 @interface CWInterface (Private)
 - (NSArray*)scanForNetworksWithParameters:(NSDictionary*)params
                                     error:(NSError**)error;
@@ skipping 92 matching lines @@
 
 // static
 WifiDataProvider* WifiDataProviderManager::DefaultFactoryFunction() {
   return new WifiDataProviderMac();
 }
 
 WifiDataProviderMac::WifiDataProviderMac() {}
 
 WifiDataProviderMac::~WifiDataProviderMac() {}
 
-WifiDataProviderMac::WlanApiInterface* WifiDataProviderMac::NewWlanApi() {
-  return new CoreWlanApi();
+std::unique_ptr<WifiDataProviderMac::WlanApiInterface>
+WifiDataProviderMac::CreateWlanApi() {
+  return base::MakeUnique<CoreWlanApi>();
 }
 
-WifiPollingPolicy* WifiDataProviderMac::NewPollingPolicy() {
-  return new GenericWifiPollingPolicy<
+std::unique_ptr<WifiPollingPolicy> WifiDataProviderMac::CreatePollingPolicy() {
+  return base::MakeUnique<GenericWifiPollingPolicy<
       kDefaultPollingInterval, kNoChangePollingInterval,
-      kTwoNoChangePollingInterval, kNoWifiPollingIntervalMilliseconds>;
+      kTwoNoChangePollingInterval, kNoWifiPollingIntervalMilliseconds>>();
 }
 
 }  // namespace device