[webkit-dev] PSA: you should use WTF::Lock and WTF::Condition instead of WTF::SpinLock, WTF::Mutex, WTF::ThreadCondition, std::mutex, std::condition_variable, or std::condition_variable_any

[Darin Adler]

Even if we remove the obsolete WTF classes, we might still want a checker rule about the ones in the std namespace.

— Darin