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

device/geolocation/wifi_data_provider_linux.h

 // Copyright (c) 2012 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.
 
 #ifndef DEVICE_GEOLOCATION_WIFI_DATA_PROVIDER_LINUX_H_
 #define DEVICE_GEOLOCATION_WIFI_DATA_PROVIDER_LINUX_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "device/geolocation/geolocation_export.h"
 #include "device/geolocation/wifi_data_provider_common.h"
 
 namespace dbus {
 class Bus;
 };
 
 namespace device {
 
 class DEVICE_GEOLOCATION_EXPORT WifiDataProviderLinux
     : public WifiDataProviderCommon {
  public:
   WifiDataProviderLinux();
 
  private:
   friend class GeolocationWifiDataProviderLinuxTest;
 
   ~WifiDataProviderLinux() override;
 
-  // WifiDataProviderCommon
-  WlanApiInterface* NewWlanApi() override;
-  WifiPollingPolicy* NewPollingPolicy() override;
+  // WifiDataProviderCommon implementation
+  std::unique_ptr<WlanApiInterface> CreateWlanApi() override;
+  std::unique_ptr<WifiPollingPolicy> CreatePollingPolicy() override;
 
-  // For testing.
-  WlanApiInterface* NewWlanApiForTesting(dbus::Bus* bus);
+  std::unique_ptr<WlanApiInterface> CreateWlanApiForTesting(dbus::Bus* bus);
 
   DISALLOW_COPY_AND_ASSIGN(WifiDataProviderLinux);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_GEOLOCATION_WIFI_DATA_PROVIDER_LINUX_H_