Require explicit selection of traits for LazyInstance

chrome/browser/extensions/install_signer.cc

Index: chrome/browser/extensions/install_signer.cc
diff --git a/chrome/browser/extensions/install_signer.cc b/chrome/browser/extensions/install_signer.cc
index bc584ad26d8fad2f8970a5941ded908648a7839e..065a544b3c85799c3059c3f9dd9d312284f8de92 100644
--- a/chrome/browser/extensions/install_signer.cc
+++ b/chrome/browser/extensions/install_signer.cc
@@ -306,11 +306,11 @@ namespace {
 
 static int g_request_count = 0;
 
-base::LazyInstance<base::TimeTicks> g_last_request_time =
+base::LazyInstance<base::TimeTicks>::DestructorAtExit g_last_request_time =
     LAZY_INSTANCE_INITIALIZER;
 
-base::LazyInstance<base::ThreadChecker> g_single_thread_checker =
-    LAZY_INSTANCE_INITIALIZER;
+base::LazyInstance<base::ThreadChecker>::DestructorAtExit
+    g_single_thread_checker = LAZY_INSTANCE_INITIALIZER;
 
 void LogRequestStartHistograms() {
   // Make sure we only ever call this from one thread, so that we don't have to