Add mimeIDL.mcp

build/mac/NGLayoutBuildList.pm

@@ -758,6 +758,7 @@ sub BuildIDLProjects()
 	BuildIDLProject(":mozilla:mailnews:news:macbuild:msgnewsIDL.mcp",				"MsgNews");
 	BuildIDLProject(":mozilla:mailnews:addrbook:macbuild:msgAddrbookIDL.mcp",		"MsgAddrbook");
 	BuildIDLProject(":mozilla:mailnews:db:macbuild:msgDBIDL.mcp",					"MsgDB");
+	BuildIDLProject(":mozilla:mailnews:mime:macbuild:mimeIDL.mcp",					"Mime");
 
 	print("--- IDL projects complete ----\n")
 }