Fix the pref binding by binding to the object rather than the element

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 aa9f6b4ec0b5d59f1ca7842d52f1c66b580d3f2e..119f1c75a8eaff70e9f07325c2e7467d53b4823a 100644
--- a/chrome/browser/resources/settings/a11y_page/a11y_page.js
+++ b/chrome/browser/resources/settings/a11y_page/a11y_page.js
@@ -23,9 +23,6 @@ Polymer({
   properties: {
     /**
      * Preferences state.
-     *
-     * @type {?CrSettingsPrefsElement}
-     * @default null
      */
     prefs: {
       type: Object,
@@ -72,14 +69,4 @@ Polymer({
       readOnly: true,
     },
   },
-
-  /**
-   * Called when the selected value of the autoclick dropdown changes.
-   * TODO(jlklein): Replace with binding when paper-dropdown lands.
-   * @private
-   */
-  autoclickSelectChanged_: function() {
-    this.prefs.settings.settings.a11y.autoclick_delay_ms =
-        this.$.autoclickDropdown.value;
-  },
 });