ensureWriter      509 Source/core/loader/DocumentLoader.cpp     ensureWriter(m_response.mimeType());
ensureWriter      612 Source/core/loader/DocumentLoader.cpp     ensureWriter(mainResource->mimeType(), m_archive->mainResource()->url());
ensureWriter      148 Source/core/loader/DocumentLoader.h         void ensureWriter(const AtomicString& mimeType, const KURL& overridingURL = KURL());