md-settings: Added settings for fingerprint unlock.

chrome/browser/resources/settings/people_page/lock_screen.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
  * 'settings-lock-screen' allows the user to change how they unlock their
  * device.
  *
  * Example:
@@ skipping 30 matching lines @@
     /**
      * writeUma_ is a function that handles writing uma stats. It may be
      * overridden for tests.
      *
      * @type {Function}
      * @private
      */
     writeUma_: {
       type: Object,
       value: function() { return settings.recordLockScreenProgress; }
-    }
+    },
+
+    /**
+     * True if pin unlock settings should be displayed on this machine.
+     * @private
+     */
+    pinUnlockEnabled_: {
+      type: Boolean,
+      value: function() {
+        return loadTimeData.getBoolean('pinUnlockEnabled');
+      },
+      readOnly: true,
+    },
+
+    /**
+     * True if fingerprint unlock settings should be displayed on this machine.
+     * @private
+     */
+    fingerprintUnlockEnabled_: {
+      type: Boolean,
+      value: function() {
+        return loadTimeData.getBoolean('fingerprintUnlockEnabled');
+      },
+      readOnly: true,
+    },
   },
 
   /** selectedUnlockType is defined in LockStateBehavior. */
   observers: ['selectedUnlockTypeChanged_(selectedUnlockType)'],
 
   /** @override */
   attached: function() {
     // currentRouteChanged is not called during the initial navigation. If the
     // user navigates directly to the lockScreen page, we still want to show the
     // password prompt page.
@@ skipping 71 matching lines @@
   /**
    * @param {!Event} e
    * @private
    */
   onConfigurePin_: function(e) {
     e.preventDefault();
     this.$.setupPin.open();
     this.writeUma_(LockScreenProgress.CHOOSE_PIN_OR_PASSWORD);
   },
 });