AssertSingletonAllowed  146 base/lazy_instance.h       ThreadRestrictions::AssertSingletonAllowed();
AssertSingletonAllowed  233 base/memory/singleton.h       base::ThreadRestrictions::AssertSingletonAllowed();
AssertSingletonAllowed  158 base/threading/thread_restrictions.h   static void AssertSingletonAllowed();
AssertSingletonAllowed  172 base/threading/thread_restrictions.h   static void AssertSingletonAllowed() {}