Add support for geolocation wifi scanning on OSX 10.6...

chrome/browser/geolocation/wifi_data_provider_mac.h

 // 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.
 
 #ifndef CHROME_BROWSER_GEOLOCATION_WIFI_DATA_PROVIDER_MAC_H_
 #define CHROME_BROWSER_GEOLOCATION_WIFI_DATA_PROVIDER_MAC_H_
 
 #include "chrome/browser/geolocation/wifi_data_provider_common.h"
 
-class OsxWifiDataProvider : public WifiDataProviderCommon {
+// Implementation of the wifi data provider for Mac OSX. Uses different API
+// bindings depending on APIs detected available at runtime in order to access
+// wifi scan data: Apple80211.h on OSX 10.5, CoreWLAN framework on OSX 10.6.
+class MacWifiDataProvider : public WifiDataProviderCommon {
  public:
-  OsxWifiDataProvider();
+  MacWifiDataProvider();
 
  private:
-  virtual ~OsxWifiDataProvider();
+  virtual ~MacWifiDataProvider();
 
   // WifiDataProviderCommon
   virtual WlanApiInterface* NewWlanApi();
   virtual PollingPolicyInterface* NewPollingPolicy();
 
-  DISALLOW_COPY_AND_ASSIGN(OsxWifiDataProvider);
+  DISALLOW_COPY_AND_ASSIGN(MacWifiDataProvider);
 };
 
+// Creates and returns a new API binding for the CoreWLAN API, or NULL if the
+// API can not be initialized.
+WifiDataProviderCommon::WlanApiInterface* NewCoreWlanApi();
+
 #endif  // CHROME_BROWSER_GEOLOCATION_WIFI_DATA_PROVIDER_MAC_H_