Require explicit selection of traits for LazyInstance

chrome/browser/performance_monitor/performance_monitor.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 CHROME_BROWSER_PERFORMANCE_MONITOR_PERFORMANCE_MONITOR_H_
 #define CHROME_BROWSER_PERFORMANCE_MONITOR_PERFORMANCE_MONITOR_H_
 
 #include <map>
 #include <memory>
 #include <vector>
@@ skipping 14 matching lines @@
 class PerformanceMonitor {
  public:
   // Returns the current PerformanceMonitor instance if one exists; otherwise
   // constructs a new PerformanceMonitor.
   static PerformanceMonitor* GetInstance();
 
   // Start the cycle of metrics gathering.
   void StartGatherCycle();
 
  private:
-  friend struct base::DefaultLazyInstanceTraits<PerformanceMonitor>;
+  friend struct base::LazyInstanceTraitsBase<PerformanceMonitor>;
 
   using MetricsMap =
       std::map<base::ProcessHandle, std::unique_ptr<ProcessMetricsHistory>>;
 
   PerformanceMonitor();
   ~PerformanceMonitor();
 
   // Perform any collections that are done on a timed basis.
   void DoTimedCollections();
 
@@ skipping 19 matching lines @@
 
   // The timer to signal PerformanceMonitor to perform its timed collections.
   base::OneShotTimer repeating_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(PerformanceMonitor);
 };
 
 }  // namespace performance_monitor
 
 #endif  // CHROME_BROWSER_PERFORMANCE_MONITOR_PERFORMANCE_MONITOR_H_