Bug #14928 --> url dispatching. convert nsIContentHandler.idl, nsIURIDispatcher.idl and nsIContentListener.idl

into .h files.
no reviewer yet. the code review for url dispatching will come later.

netwerk/base/public/makefile.win

@@ -45,6 +45,9 @@ XPIDLSRCS =                             \
         .\nsIFileTransportService.idl   \
         .\nsIStatusCodeEventSink.idl    \
         .\nsIFileSystem.idl             \
+        .\nsIContentHandler.idl         \
+        .\nsIURIDispatcher.idl          \
+        .\nsIURIContentListener.idl     \
         $(NULL)
 
 include <$(DEPTH)/config/rules.mak>