Continuation of CL 5685007, rename the singleton accessor method in more files.

chrome/browser/chromeos/login/ownership_service.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.
 
 #include "chrome/browser/chromeos/login/ownership_service.h"
 
 #include "base/file_path.h"
 #include "base/file_util.h"
+#include "base/lazy_instance.h"
 #include "chrome/browser/browser_thread.h"
 
 namespace chromeos {
 
+static base::LazyInstance<OwnershipService> g_ownership_service(
+    base::LINKER_INITIALIZED);
+
 //  static
 OwnershipService* OwnershipService::GetSharedInstance() {
-  return Singleton<OwnershipService>::get();
+  return g_ownership_service.Pointer();
 }
 
 OwnershipService::OwnershipService()
     : manager_(new OwnerManager),
       utils_(OwnerKeyUtils::Create()) {
 }
 
 OwnershipService::~OwnershipService() {}
 
 
@@ skipping 65 matching lines @@
   return;
 }
 
 bool OwnershipService::CurrentUserIsOwner() {
   // If this user has the private key associated with the owner's
   // public key, this user is the owner.
   return IsAlreadyOwned() && manager_->EnsurePrivateKey();
 }
 
 }  // namespace chromeos