DefaultRefCountedThreadSafeTraits  154 base/memory/ref_counted.h                          DefaultRefCountedThreadSafeTraits>::DeleteInternal(x);
DefaultRefCountedThreadSafeTraits  170 base/memory/ref_counted.h template <class T, typename Traits = DefaultRefCountedThreadSafeTraits<T> >
DefaultRefCountedThreadSafeTraits  189 base/memory/ref_counted.h   friend struct DefaultRefCountedThreadSafeTraits<T>;