Propagate connected user to web app.

remoting/webapp/me2mom/l10n.js

Index: remoting/webapp/me2mom/l10n.js
diff --git a/remoting/webapp/me2mom/l10n.js b/remoting/webapp/me2mom/l10n.js
index ce20602281afddf7a9365df7295bcecfb03703fa..20506dcc5458eca595df8e2aa77029afa1da6ba4 100644
--- a/remoting/webapp/me2mom/l10n.js
+++ b/remoting/webapp/me2mom/l10n.js
@@ -10,16 +10,32 @@
 
 var l10n = l10n || {};
 
+/**
+ * Localize an element by setting its innerText according to its i18n-content
+ * attribute, and an optional set of substitutions.
+ * @param {Element} element The element to localize.
+ * @param {string=} opt_substitutions An optional set of substitution strings
+ *     corresponding to the "placeholders"attributes in messages.json.
+ * @return {boolean} True if the localization was successful; false otherwise.
+ */
+l10n.localizeElement = function(element, opt_substitutions) {
+  var tag = element.getAttribute('i18n-content');
+  var translation = chrome.i18n.getMessage(tag, opt_substitutions);
+  if (translation) {
+    element.innerText = translation;
+  } else {
+    console.error('Missing translation for "' + tag + '":', element);
+  }
+  return translation != null;
+};
+
+/**
+ * Localize all tags with the i18n-content attribute.
+ */
 l10n.localize = function() {
   var elements = document.querySelectorAll('[i18n-content]');
   for (var i = 0; i < elements.length; ++i) {
     var element = elements[i];
-    var tag = element.getAttribute('i18n-content');
-    var translation = chrome.i18n.getMessage(tag);
-    if (translation) {
-      element.innerText = translation;
-    } else {
-      console.error('Missing translation for "' + tag +'":', element);
-    }
+    l10n.localizeElement(element);
   }
-}
+};