Require explicit selection of traits for LazyInstance

chrome/common/extensions/chrome_extensions_client.h

 // Copyright 2013 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.
 
 #ifndef CHROME_COMMON_EXTENSIONS_CHROME_EXTENSIONS_CLIENT_H_
 #define CHROME_COMMON_EXTENSIONS_CHROME_EXTENSIONS_CLIENT_H_
 
 #include <memory>
 
 #include "base/compiler_specific.h"
@@ skipping 54 matching lines @@
   // A whitelist of extensions that can script anywhere. Do not add to this
   // list (except in tests) without consulting the Extensions team first.
   // Note: Component extensions have this right implicitly and do not need to be
   // added to this list.
   ScriptingWhitelist scripting_whitelist_;
 
   // Mutable to allow caching in a const method.
   mutable GURL webstore_base_url_;
   mutable GURL webstore_update_url_;
 
-  friend struct base::DefaultLazyInstanceTraits<ChromeExtensionsClient>;
+  friend struct base::LazyInstanceTraitsBase<ChromeExtensionsClient>;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeExtensionsClient);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_COMMON_EXTENSIONS_CHROME_EXTENSIONS_CLIENT_H_