isValidSource      56 Source/core/events/MessageEvent.cpp     , m_source(isValidSource(initializer.source.get()) ? initializer.source : nullptr)
isValidSource      60 Source/core/events/MessageEvent.cpp     ASSERT(isValidSource(m_source.get()));
isValidSource      72 Source/core/events/MessageEvent.cpp     ASSERT(isValidSource(m_source.get()));
isValidSource      87 Source/core/events/MessageEvent.cpp     ASSERT(isValidSource(m_source.get()));
isValidSource     102 Source/core/events/MessageEvent.cpp     ASSERT(isValidSource(m_source.get()));
isValidSource     138 Source/core/events/MessageEvent.cpp     if (initializer.source.get() && !isValidSource(initializer.source.get())) {