MD Settings: Date and Time page, part 2/3

chrome/browser/resources/settings/controls/settings_dropdown_menu.js

Index: chrome/browser/resources/settings/controls/settings_dropdown_menu.js
diff --git a/chrome/browser/resources/settings/controls/settings_dropdown_menu.js b/chrome/browser/resources/settings/controls/settings_dropdown_menu.js
index 06061fbffc0d797738e2980f8d4ea43bbf9e7498..b73c4c8fa62acd8296dcee67764979d4748198c1 100644
--- a/chrome/browser/resources/settings/controls/settings_dropdown_menu.js
+++ b/chrome/browser/resources/settings/controls/settings_dropdown_menu.js
@@ -102,9 +102,14 @@ Polymer({
     // Need to wait for the dom-repeat to render, before assigning a value to
     // |selected_|, otherwise select#value is not populated correctly.
     this.async(function() {
-      this.selected_ = option == undefined ?
+      var newSelected = option == undefined ?
           this.notFoundValue_ :
           Settings.PrefUtil.prefToString(assert(this.pref));
+
+      // Ensure Polymer recognizes that selected_ changes.
+      if (newSelected == this.selected_)
+        this.selected_ = '';

[stevenjb, 2016/10/21 20:16:40]

Eww. Can we do:
if( == )
  this.notifyPath('selected_');
else
  this.selected_ = newSelected
?

[michaelpg, 2016/10/25 00:35:15]

Found a correct-er fix and rebased this patch on that one.

+      this.selected_ = newSelected;
     }.bind(this));
   },