Settings People Revamp: Easy Unlock: Add browser proxy and setup flow.

chrome/browser/resources/settings/people_page/easy_unlock_browser_proxy.js

+// Copyright 2016 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 A helper object used from the the People section to interact
+ * with the Easy Unlock functionality of the browser. ChromeOS only.
+ */
+cr.exportPath('settings');
+
+cr.define('settings', function() {
+  /** @interface */
+  function EasyUnlockBrowserProxy() {}
+
+  EasyUnlockBrowserProxy.prototype = {
+    /**
+     * Returns a true promise if Easy Unlock is already enabled on the device.
+     * @return {!Promise<boolean>}
+     */
+    getEnabledStatus: function() {},
+
+    /**
+     * Starts the Easy Unlock setup flow.
+     */
+    launchSetup: function() {}
+  };
+
+  /**
+   * @constructor
+   * @implements {EasyUnlockBrowserProxy}
+   */
+  function EasyUnlockBrowserProxyImpl() {}
+  // The singleton instance_ is replaced with a test version of this wrapper
+  // during testing.
+  cr.addSingletonGetter(EasyUnlockBrowserProxyImpl);
+
+  EasyUnlockBrowserProxyImpl.prototype = {
+    /** @override */
+    getEnabledStatus: function() {
+      return cr.sendWithPromise('easyUnlockGetEnabledStatus');
+    },
+
+    /** @override */
+    launchSetup: function() {
+      chrome.send('easyUnlockLaunchSetup');
+    },
+  };
+
+  return {
+    EasyUnlockBrowserProxyImpl: EasyUnlockBrowserProxyImpl,
+  };
+});