diff --git a/core/xml.js b/core/xml.js
index 6ce6e3da4..25fa36a2a 100644
--- a/core/xml.js
+++ b/core/xml.js
@@ -316,8 +316,7 @@ Blockly.Xml.cloneShadow_ = function(shadow) {
  * @return {string} Text representation.
  */
 Blockly.Xml.domToText = function(dom) {
-  var oSerializer = new XMLSerializer();
-  return oSerializer.serializeToString(dom);
+  return Blockly.Xml.utils.domToText(dom);
 };
 
 /**
@@ -351,19 +350,6 @@ Blockly.Xml.domToPrettyText = function(dom) {
   return text.replace(/^\n/, '');
 };
 
-/**
- * Converts an XML string into a DOM tree. This method will be overridden in
- * the Node.js build of Blockly. See gulpfile.js, blockly_javascript_en task.
- * @param {string} text XML string.
- * @return {!Element} The DOM document.
- * @throws if XML doesn't parse.
- * @private
- */
-Blockly.Xml.textToDomDocument_ = function(text) {
-  var oParser = new DOMParser();
-  return oParser.parseFromString(text, 'text/xml');
-};
-
 /**
  * Converts an XML string into a DOM structure. It requires the XML to have a
  * root element of <xml>. Other XML string will result in throwing an error.
@@ -372,7 +358,7 @@ Blockly.Xml.textToDomDocument_ = function(text) {
  * @throws if XML doesn't parse or is not the expected structure.
  */
 Blockly.Xml.textToDom = function(text) {
-  var doc = Blockly.Xml.textToDomDocument_(text);
+  var doc = Blockly.Xml.utils.textToDomDocument(text);
   // This function only accepts <xml> documents.
   if (!doc || !doc.documentElement ||
       doc.documentElement.nodeName.toLowerCase() != 'xml') {
diff --git a/core/xml_utils.js b/core/xml_utils.js
index 9281b087e..fa5efdc28 100644
--- a/core/xml_utils.js
+++ b/core/xml_utils.js
@@ -52,3 +52,26 @@ Blockly.Xml.utils.createTextNode = function(text) {
   return document.createTextNode(text);
 };
 
+/**
+ * Converts an XML string into a DOM tree. This method will be overridden in
+ * the Node.js build of Blockly. See gulpfile.js, blockly_javascript_en task.
+ * @param {string} text XML string.
+ * @return {!Element} The DOM document.
+ * @throws if XML doesn't parse.
+ */
+Blockly.Xml.utils.textToDomDocument = function(text) {
+  var oParser = new DOMParser();
+  return oParser.parseFromString(text, 'text/xml');
+};
+
+/**
+ * Converts a DOM structure into plain text.
+ * Currently the text format is fairly ugly: all one line with no whitespace.
+ * @param {!Element} dom A tree of XML elements.
+ * @return {string} Text representation.
+ */
+Blockly.Xml.utils.domToText = function(dom) {
+  // TODO: Support node.js.
+  var oSerializer = new XMLSerializer();
+  return oSerializer.serializeToString(dom);
+};
diff --git a/gulpfile.js b/gulpfile.js
index 02ea08107..fdbb9b367 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -56,13 +56,13 @@ gulp.task('blockly_javascript_en', function() {
     'msg/js/en.js'
   ];
   // Concatenate the sources, appending the module export at the bottom.
-  // Override textToDomDocument_, providing Node alternative to DOMParser.
+  // Override textToDomDocument, providing Node alternative to DOMParser.
   return gulp.src(srcs)
       .pipe(gulp.concat('blockly_node_javascript_en.js'))
       .pipe(insert.append(`
 if (typeof DOMParser !== 'function') {
   var JSDOM = require('jsdom').JSDOM;
-  Blockly.Xml.textToDomDocument_ = function(text) {
+  Blockly.Xml.utils.textToDomDocument = function(text) {
     var jsdom = new JSDOM(text, { contentType: 'text/xml' });
     return jsdom.window.document;
   };