Update from https://crrev.com/306655

base/test/launcher/test_launcher_ios.cc

Index: base/test/launcher/test_launcher_ios.cc
diff --git a/base/test/launcher/test_launcher_ios.cc b/base/test/launcher/test_launcher_ios.cc
index 38e4ef9aa916ceca2d49d2f043cf65c1a3d6f6c3..39051caa3808c8fbad5327bed8dbedcdbaeebe60 100644
--- a/base/test/launcher/test_launcher_ios.cc
+++ b/base/test/launcher/test_launcher_ios.cc
@@ -4,6 +4,7 @@
 
 #include "base/test/launcher/test_launcher.h"
 
+#include "base/at_exit.h"
 #include "base/bind.h"
 #include "base/test/launcher/unit_test_launcher.h"
 
@@ -16,5 +17,6 @@ int DummyRunTestSuite(void) {
 }  // namespace
 
 int main(int argc, char** argv) {
+  base::AtExitManager at_exit;
   return base::LaunchUnitTests(argc, argv, base::Bind(&DummyRunTestSuite));
 }