*aContentType = nsXPIDLCString::Copy("mozilla.application/cached-xul");
*aContentType = nsCRT::strdup("mozilla.application/cached-xul");
nsCachedChromeChannel::GetContentType(char * *aContentType){    *aContentType = nsXPIDLCString::Copy("mozilla.application/cached-xul");    return *aContentType ? NS_OK : NS_ERROR_OUT_OF_MEMORY;}