Autoclick on md-settings is synced with autoclick on settings.

chrome/browser/resources/settings/a11y_page/a11y_page.js

Index: chrome/browser/resources/settings/a11y_page/a11y_page.js
diff --git a/chrome/browser/resources/settings/a11y_page/a11y_page.js b/chrome/browser/resources/settings/a11y_page/a11y_page.js
index 0c56580f9e437e85cf4375adcfe220c8e6cedc67..f9399ea4b20d7b83709d1808878a73d81eaaeb53 100644
--- a/chrome/browser/resources/settings/a11y_page/a11y_page.js
+++ b/chrome/browser/resources/settings/a11y_page/a11y_page.js
@@ -25,7 +25,24 @@ Polymer({
       type: Object,
       notify: true,
     },
-
+    autoClickDelayOptions_: {
+     readOnly: true,
+      type: Array,
+      value: function() {
+        return [
+          {value: 600,
+          name: loadTimeData.getString('delayBeforeClickExtremelyShort')},
+          {value: 800,
+          name: loadTimeData.getString('delayBeforeClickVeryShort')},
+          {value: 1000,
+          name: loadTimeData.getString('delayBeforeClickShort')},
+          {value: 2000,
+          name: loadTimeData.getString('delayBeforeClickLong')},
+          {value: 4000,
+          name: loadTimeData.getString('delayBeforeClickVeryLong')},
+        ];
+      },

[Dan Beam, 2016/07/16 00:35:27]

nit:

return [
  {
    value: 600,
    name: loadTimeData.getString('delayBeforeClickExtremelyShort'),
  },
  ...
];

is probably more common indentation

[michaelpg, 2016/07/16 08:36:26]

+1

[sammiequon, 2016/07/20 17:19:31]

Done.

+    },
 <if expr="chromeos">
     /**
      * Whether to show experimental accessibility features.