diff -r 000000000000 -r 6474c204b198 parser/html/nsIScriptableUnescapeHTML.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/parser/html/nsIScriptableUnescapeHTML.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,54 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+
+interface nsIDOMElement;
+interface nsIDOMDocumentFragment;
+interface nsIURI;
+
+/**
+ * This interface is OBSOLETE and exists solely for legacy extensions.
+ */
+[scriptable, uuid(3ab244a9-f09d-44da-9e3f-ee4d67367f2d)]
+interface nsIScriptableUnescapeHTML : nsISupports 
+{
+  /** 
+   * Converts HTML to plain text. This is equivalent to calling
+   * nsIParserUtils::convertToPlainText(src, 
+   *   nsIDocumentEncoder::OutputSelectionOnly |
+   *   nsIDocumentEncoder::OutputAbsoluteLinks, 0).
+   *
+   * You should call nsIParserUtils::convertToPlainText() instead of calling 
+   * this method.
+   *
+   * @param src The HTML string to convert to plain text.
+   */ 
+  AString unescape(in AString src);
+        
+  /**
+   * Parses markup into a sanitized document fragment. This is equivalent to
+   * calling nsIParserUtils::parseFragment(fragment, 0, isXML, baseURI,
+   * element).
+   *
+   * You should call nsIParserUtils::parseFragment() instead of calling this 
+   * method.
+   * @param fragment the input markup
+   * @param isXML true if |fragment| is XML and false if HTML
+   * @param baseURI the base URL for this fragment
+   * @param element the context node for the fragment parsing algorithm
+   */
+  nsIDOMDocumentFragment parseFragment(in AString fragment,
+                                       in boolean isXML,
+                                       in nsIURI baseURI,
+                                       in nsIDOMElement element);
+};
+
+%{ C++
+#define NS_SCRIPTABLEUNESCAPEHTML_CONTRACTID \
+  "@mozilla.org/feed-unescapehtml;1"
+#define NS_SCRIPTABLEUNESCAPEHTML_CID  \
+{ 0x10f2f5f0, 0xf103, 0x4901, { 0x98, 0x0f, 0xba, 0x11, 0xbd, 0x70, 0xd6, 0x0d} }
+%}