Require explicit selection of traits for LazyInstance

chrome/browser/sync_file_system/logger.cc

 // 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.
 
 #include "chrome/browser/sync_file_system/logger.h"
 
 #include "base/files/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/location.h"
 #include "base/strings/stringprintf.h"
 #include "components/drive/event_logger.h"
 
 namespace sync_file_system {
 namespace util {
 namespace {
 
-static base::LazyInstance<drive::EventLogger> g_logger =
+static base::LazyInstance<drive::EventLogger>::DestructorAtExit g_logger =
     LAZY_INSTANCE_INITIALIZER;
 
 const char* LogSeverityToString(logging::LogSeverity level) {
   switch (level) {
     case logging::LOG_ERROR:
       return "ERROR";
     case logging::LOG_WARNING:
       return "WARNING";
     case logging::LOG_INFO:
       return "INFO";
@@ skipping 41 matching lines @@
       .stream() << what;
 }
 
 std::vector<drive::EventLogger::Event> GetLogHistory() {
   drive::EventLogger* ptr = g_logger.Pointer();
   return ptr->GetHistory();
 }
 
 }  // namespace util
 }  // namespace sync_file_system