Revert of Turn VariationsService::GetVariationsServerURL into instance method

chrome/browser/metrics/variations/variations_service.cc

 // 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.
 
 #include "chrome/browser/metrics/variations/variations_service.h"
 
 #include "base/build_time.h"
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/sparse_histogram.h"
@@ skipping 347 matching lines @@
   // This should be called before the server URL has been computed.
   DCHECK(variations_server_url_.is_empty());
   restrict_mode_ = restrict_mode;
 }
 
 void VariationsService::SetCreateTrialsFromSeedCalledForTesting(bool called) {
   DCHECK(thread_checker_.CalledOnValidThread());
   create_trials_from_seed_called_ = called;
 }
 
+// static
 GURL VariationsService::GetVariationsServerURL(
     PrefService* policy_pref_service,
     const std::string& restrict_mode_override) {
   std::string server_url_string(
       base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
           switches::kVariationsServerURL));
   if (server_url_string.empty())
     server_url_string = kDefaultServerUrl;
   GURL server_url = GURL(server_url_string);
 
@@ skipping 369 matching lines @@
   // Otherwise, update the pref with the current Chrome version and country.
   base::ListValue new_list_value;
   new_list_value.AppendString(version.GetString());
   new_list_value.AppendString(latest_country);
   local_state_->Set(prefs::kVariationsPermanentConsistencyCountry,
                     new_list_value);
   return latest_country;
 }
 
 }  // namespace chrome_variations