MD Settings: Fix timezone autodetect policy indicator.

ui/webui/resources/cr_elements/policy/cr_policy_pref_indicator.js

Index: ui/webui/resources/cr_elements/policy/cr_policy_pref_indicator.js
diff --git a/ui/webui/resources/cr_elements/policy/cr_policy_pref_indicator.js b/ui/webui/resources/cr_elements/policy/cr_policy_pref_indicator.js
index dcb58c425f3253a9db5dc88c38f1dc26607f2ced..5526eb54d0eaef62e5056b4c1d63994bf6a4478b 100644
--- a/ui/webui/resources/cr_elements/policy/cr_policy_pref_indicator.js
+++ b/ui/webui/resources/cr_elements/policy/cr_policy_pref_indicator.js
@@ -40,5 +40,12 @@ Polymer({
     var matches = pref && pref.value == pref.recommendedValue;
     return this.getPolicyIndicatorTooltip(
         type, pref.controlledByName || '', matches);
-  }
+  },
+
+  /**
+   * @return {boolean} Whether the policy indicator is on. Useful for testing.
+   */
+  isActive: function() {
+    return this.isIndicatorVisible(this.indicatorType);
+  },
 });