Remove static initializer in url_info.cc.

chrome/browser/net/predictor.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.
 
 // A Predictor object is instantiated once in the browser process, and manages
 // both preresolution of hostnames, as well as TCP/IP preconnection to expected
 // subresources.
 // Most hostname lists are provided by the renderer processes, and include URLs
 // that *might* be used in the near future by the browsing user.  One goal of
 // this class is to cause the underlying DNS structure to lookup a hostname
@@ skipping 350 matching lines @@
 
   // Only for testing. Returns true if hostname has been successfully resolved
   // (name found).
   bool WasFound(const GURL& url) const {
     Results::const_iterator it(results_.find(url));
     return (it != results_.end()) &&
             it->second.was_found();
   }
 
   // Only for testing. Return how long was the resolution
-  // or UrlInfo::kNullDuration if it hasn't been resolved yet.
+  // or UrlInfo::NullDuration() if it hasn't been resolved yet.
   base::TimeDelta GetResolutionDuration(const GURL& url) {
     if (results_.find(url) == results_.end())
-      return UrlInfo::kNullDuration;
+      return UrlInfo::NullDuration();
     return results_[url].resolve_duration();
   }
 
   // Only for testing;
   size_t peak_pending_lookups() const { return peak_pending_lookups_; }
 
   // ------------- Start IO thread methods.
 
   // Perform actual resolution or preconnection to subresources now.  This is
   // an internal worker method that is reached via a post task from
@@ skipping 129 matching lines @@
       PrefService* user_prefs,
       PrefService* local_state,
       IOThread* io_thread,
       net::URLRequestContextGetter* getter) OVERRIDE;
   virtual void ShutdownOnUIThread(PrefService* user_prefs) OVERRIDE;
 };
 
 }  // namespace chrome_browser_net
 
 #endif  // CHROME_BROWSER_NET_PREDICTOR_H_