Require explicit selection of traits for LazyInstance

ui/accelerated_widget_mac/display_link_mac.h

 // Copyright 2014 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 UI_ACCELERATED_WIDGET_MAC_DISPLAY_LINK_MAC_H_
 #define UI_ACCELERATED_WIDGET_MAC_DISPLAY_LINK_MAC_H_
 
 #include <map>
 #include <QuartzCore/CVDisplayLink.h>
 
@@ skipping 72 matching lines @@
   base::TimeTicks timebase_;
   base::TimeDelta interval_;
 
   // The time after which we should re-start the display link to get fresh
   // parameters.
   base::TimeTicks recalculate_time_;
 
   // Each display link instance consumes a non-negligible number of cycles, so
   // make all display links on the same screen share the same object.
   typedef std::map<CGDirectDisplayID, DisplayLinkMac*> DisplayMap;
-  static base::LazyInstance<DisplayMap> display_map_;
+  static base::LazyInstance<DisplayMap>::DestructorAtExit display_map_;
 };
 
 }  // ui
 
 #endif  // UI_ACCELERATED_WIDGET_MAC_DISPLAY_LINK_MAC_H_