Build change to make WinCE build exthandler. r=dougt

uriloader/exthandler/Makefile.in

@@ -140,7 +140,7 @@ CPPSRCS	= \
 	$(OSHELPER) \
 	$(NULL)
 
-ifeq ($(OS_ARCH),WINNT)
+ifeq ($(OS_ARCH),WINNT WINCE)
 OS_LIBS		+= shell32.lib
 GARBAGE		+= nsOSHelperAppService.cpp $(srcdir)/nsOSHelperAppService.cpp \
              nsMIMEInfoWin.cpp $(srcdir)/nsMIMEInfoWin.cpp
@@ -156,7 +156,7 @@ CXXFLAGS += $(TK_CFLAGS)
 endif
 
 # the use of multiple VPATH dirs is broken in cygwin make
-ifeq ($(OS_ARCH),WINNT)
+ifeq ($(OS_ARCH),WINNT WINCE)
 export:: $(OSDIR)/nsOSHelperAppService.cpp $(OSDIR)/nsMIMEInfoWin.cpp
 	$(INSTALL) $^ .
 endif