Add a new GetInstance() method for remaining files with singleton classes under chrome/browser.

chrome/browser/chromeos/login/signed_settings_temp_storage.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/signed_settings_temp_storage.h"
 
+#include "base/lazy_instance.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/login/ownership_service.h"
 #include "chrome/browser/chromeos/login/signed_settings.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/pref_names.h"
 
+static base::LazyInstance<chromeos::SignedSettings::Delegate<bool> >
+    g_signed_settings_delegate(base::LINKER_INITIALIZED);
+
 namespace chromeos {
 
 // static
 void SignedSettingsTempStorage::RegisterPrefs(PrefService* local_state) {
   local_state->RegisterDictionaryPref(prefs::kSignedSettingsTempStorage);
 }
 
 // static
 bool SignedSettingsTempStorage::Store(const std::string& name,
                                       const std::string& value,
@@ skipping 36 matching lines @@
       // before owner has been assigned.
       // Now owner is assigned and key is generated and we should persist
       // those settings into signed storage.
       for (DictionaryValue::key_iterator it = temp_storage->begin_keys();
            it != temp_storage->end_keys();
            ++it) {
         std::string value;
         temp_storage->GetStringWithoutPathExpansion(*it, &value);
         SignedSettings::CreateStorePropertyOp(
             *it, value,
-            Singleton< SignedSettings::Delegate<bool> >::get())->Execute();
+            g_signed_settings_delegate.Pointer())->Execute();
       }
       local_state->ClearPref(prefs::kSignedSettingsTempStorage);
     }
   }
 }
 
 }  // namespace chromeos