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

device/geolocation/wifi_data_provider_mac.mm

Index: device/geolocation/wifi_data_provider_mac.mm
diff --git a/device/geolocation/wifi_data_provider_mac.mm b/device/geolocation/wifi_data_provider_mac.mm
index a5f978bf7f70b1d5268df0d109625ba2ca6b5f8d..6edf1793bc43ad6f51acbfa7523951649218d8fe 100644
--- a/device/geolocation/wifi_data_provider_mac.mm
+++ b/device/geolocation/wifi_data_provider_mac.mm
@@ -10,6 +10,7 @@
 #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"
@@ -122,14 +123,15 @@ 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