Standardize usage of virtual/override/final in content/browser/

content/browser/geolocation/wifi_data_provider_mac.cc

 // Copyright (c) 2010 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.
 
 // For OSX 10.5 we use the system API function WirelessScanSplit. This function
 // is not documented or included in the SDK, so we use a reverse-engineered
 // header, osx_wifi_.h. This file is taken from the iStumbler project
 // (http://www.istumbler.net).
 
 #include "content/browser/geolocation/wifi_data_provider_mac.h"
@@ skipping 12 matching lines @@
 const int kDefaultPollingInterval = 120000;  // 2 mins
 const int kNoChangePollingInterval = 300000;  // 5 mins
 const int kTwoNoChangePollingInterval = 600000;  // 10 mins
 const int kNoWifiPollingIntervalMilliseconds = 20 * 1000; // 20s
 
 // Provides the wifi API binding for use when running on OSX 10.5 machines using
 // the Apple80211 framework.
 class Apple80211Api : public WifiDataProviderCommon::WlanApiInterface {
  public:
   Apple80211Api();
-  virtual ~Apple80211Api();
+  ~Apple80211Api() override;
 
   // Must be called before any other interface method. Will return false if the
   // Apple80211 framework cannot be initialized (e.g. running on post-10.5 OSX),
   // in which case no other method may be called.
   bool Init();
 
   // WlanApiInterface
-  virtual bool GetAccessPointData(WifiData::AccessPointDataSet* data) override;
+  bool GetAccessPointData(WifiData::AccessPointDataSet* data) override;
 
  private:
   // Handle, context and function pointers for Apple80211 library.
   void* apple_80211_library_;
   WirelessContext* wifi_context_;
   WirelessAttachFunction WirelessAttach_function_;
   WirelessScanSplitFunction WirelessScanSplit_function_;
   WirelessDetachFunction WirelessDetach_function_;
 
   WifiData wifi_data_;
@@ skipping 135 matching lines @@
 }
 
 WifiPollingPolicy* WifiDataProviderMac::NewPollingPolicy() {
   return new GenericWifiPollingPolicy<kDefaultPollingInterval,
                                       kNoChangePollingInterval,
                                       kTwoNoChangePollingInterval,
                                       kNoWifiPollingIntervalMilliseconds>;
 }
 
 }  // namespace content