shouldReceiveMutationFrom   54 Source/core/dom/MutationObserverRegistration.h     bool shouldReceiveMutationFrom(Node&, MutationObserver::MutationType, const QualifiedName* attributeName) const;
shouldReceiveMutationFrom 2058 Source/core/dom/Node.cpp         if (registration.shouldReceiveMutationFrom(target, type, attributeName)) {