Fake MD Flags sample WebUI

chrome/browser/resources/polymer_flags/flags_table.js

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/**
+ * @fileoverview 'cr-flags-table' displays the list of flags.
+ */
+Polymer({
+  is: 'cr-flags-table',
+
+  properties: {
+    /**
+     * The set of flags.
+     * @type !Array<!CrFlag>
+     */
+    flags: {
+      type: Array,
+      value: function() { return []; },
+    },
+  },
+
+  observers: [
+    'flagsChanged_(flags.*)',

[michaelpg, 2015/07/07 19:31:51]

I must be missing something obvious, but isn't this supposed to observe changes
to element properties? I can't figure out why the observer isn't called when
flags[0].enabled changes as a result of the <cr-toggle-button> changing.

+  ],
+
+  flagsChanged_: function(e) {
+    console.log(e);
+  },
+});