as this code has been reconsolidated in the base class for
all to use. For everyone, if the mime type is unknown or octet,
then try to guess a content type by file extension in doContent.
Also, if we can't find a mime type, create a new one for all platforms
so we don't need to bring up the ucth dialog.
sr=sspitzer
git-svn-id: svn://10.0.0.236/trunk@86441 18797224-902f-48f8-a5cc-f745e15eee43
Tinderbox break - need os2 changes for uriloader - I am just taking the UNIX for now - hope it builds
git-svn-id: svn://10.0.0.236/trunk@73817 18797224-902f-48f8-a5cc-f745e15eee43