Require explicit selection of traits for LazyInstance

net/url_request/url_fetcher_core.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.
 
 #ifndef NET_URL_REQUEST_URL_FETCHER_CORE_H_
 #define NET_URL_REQUEST_URL_FETCHER_CORE_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 328 matching lines @@
   // Timer to poll the progress of uploading for POST and PUT requests.
   // When crbug.com/119629 is fixed, scoped_ptr is not necessary here.
   std::unique_ptr<base::RepeatingTimer> upload_progress_checker_timer_;
   // Number of bytes sent so far.
   int64_t current_upload_bytes_;
   // Number of bytes received so far.
   int64_t current_response_bytes_;
   // Total expected bytes to receive (-1 if it cannot be determined).
   int64_t total_response_bytes_;
 
-  static base::LazyInstance<Registry> g_registry;
+  static base::LazyInstance<Registry>::DestructorAtExit g_registry;
 
   DISALLOW_COPY_AND_ASSIGN(URLFetcherCore);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_FETCHER_CORE_H_