isOldValueRequested 64 Source/core/css/PropertySetCSSStyleDeclaration.cpp if (m_mutationRecipients && m_mutationRecipients->isOldValueRequested()) isOldValueRequested 72 Source/core/css/PropertySetCSSStyleDeclaration.cpp AtomicString requestedOldValue = m_mutationRecipients->isOldValueRequested() ? oldValue : nullAtom; isOldValueRequested 70 Source/core/dom/MutationObserverInterestGroup.h bool isOldValueRequested();