creator of prescontext is responsible for initializing pres context.
devicecontext is now init()ed with a nsNativeWidget.
removed hacky X Display stuff from device context and font metrics.
removed hacky code from windows font metrics.
changed nsNativeWindow to be nsNativeWidget.
added more code for compositor back-to-front pass.
improved text performance on X.
changed nsHTMLTagContent.cpp so that it will build with MSVC 4.1.
git-svn-id: svn://10.0.0.236/trunk@4472 18797224-902f-48f8-a5cc-f745e15eee43
