responseIsXML     250 Source/core/xml/XMLHttpRequest.cpp         if ((m_response.isHTTP() && !responseIsXML() && !isHTML)
responseIsXML    1310 Source/core/xml/XMLHttpRequest.cpp         else if (responseIsXML()) {
responseIsXML     162 Source/core/xml/XMLHttpRequest.h     bool responseIsXML() const;