Bug #38374 --> more updates for external helper application support. (NOT PART OF THE BUILD!!!!!!!!!)

code review will come when this is done and gets turned on.

RDF header file which defines our vocabulary for the mime mapping data source.

uriloader/exthandler/nsHelperAppRDF.h

@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1999 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ */
+
+// This file holds our vocabulary definition for the helper
+// app data source. The helper app data source contains user specified helper
+// application override information.
+
+
+#define NC_RDF_MIMETYPES				NC_NAMESPACE_URI"MIME-Types"
+// a mime type has the following properties...
+#define NC_RDF_MIMETYPE 				NC_NAMESPACE_URI"MIME-Type"
+#define NC_RDF_DESCRIPTION			NC_NAMESPACE_URI"description"
+#define NC_RDF_VALUE					  NC_NAMESPACE_URI"value"
+#define NC_RDF_EDITABLE   			NC_NAMESPACE_URI"editable"
+#define NC_RDF_LARGEICON				NC_NAMESPACE_URI"largeIcon"
+#define NC_RDF_SMALLICON				NC_NAMESPACE_URI"smallIcon"
+#define NC_RDF_HANDLER				  NC_NAMESPACE_URI"handler"
+#define NC_RDF_FILEEXTENSIONS	  NC_NAMESPACE_URI"fileExtensions"
+#define NC_RDF_CHILD            NC_NAMESPACE_URI"child"
+#define NC_RDF_ROOT 			      "NC:HelperAppRoot"
+#define NC_CONTENT_NODE_PREFIX  "urn:mimetype:"
+#define NC_CONTENT_NODE_HANDLER_PREFIX "urn:mimetype:handler:"
+#define NC_CONTENT_NODE_EXTERNALAPP_PREFIX "urn:mimetype:externalApplication:"
+
+// File Extensions have file extension properties....
+#define NC_RDF_FILEEXTENSION    NC_NAMESPACE_URI"fileExtension"
+
+// handler properties
+#define NC_RDF_SAVETODISK				    NC_NAMESPACE_URI"saveToDisk"
+#define NC_RDF_HANDLEINTERNAL       NC_NAMESPACE_URI"handleInternal"
+#define NC_RDF_ALWAYSASK            NC_NAMESPACE_URI"alwaysAsk"
+#define NC_RDF_EXTERNALAPPLICATION  NC_NAMESPACE_URI"externalApplication"
+
+// external applications properties....
+#define NC_RDF_PRETTYNAME 			    NC_NAMESPACE_URI"prettyName"
+#define NC_RDF_PATH 			          NC_NAMESPACE_URI"path"
+