Geolocation: move polling policy to its own file.

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 166 matching lines @@
     return core_wlan_api;
 
   scoped_ptr<Apple80211Api> wlan_api(new Apple80211Api);
   if (wlan_api->Init())
     return wlan_api.release();
 
   DVLOG(1) << "MacWifiDataProvider : failed to initialize any wlan api";
   return NULL;
 }
 
-PollingPolicyInterface* MacWifiDataProvider::NewPollingPolicy() {
-  return new GenericPollingPolicy<kDefaultPollingInterval,
-                                  kNoChangePollingInterval,
-                                  kTwoNoChangePollingInterval,
-                                  kNoWifiPollingIntervalMilliseconds>;
+WifiPollingPolicy* MacWifiDataProvider::NewPollingPolicy() {
+  return new GenericWifiPollingPolicy<kDefaultPollingInterval,
+                                      kNoChangePollingInterval,
+                                      kTwoNoChangePollingInterval,
+                                      kNoWifiPollingIntervalMilliseconds>;
 }
 
 }  // namespace content