Add enterprise policy to turn off Bluetooth.

third_party/WebKit/LayoutTests/bluetooth/resources/bluetooth-helpers.js

 'use strict';
 
 // Sometimes we need to test that using either the name, alias, or UUID
 // produces the same result. The following objects help us do that.
 var generic_access = {
   alias: 0x1800,
   name: 'generic_access',
   uuid: '00001800-0000-1000-8000-00805f9b34fb'
 };
 var device_name = {
@@ skipping 269 matching lines @@
   constructor(object, event) {
     this.eventFired = false;
     let event_listener = e => {
       object.removeEventListener(event, event_listener);
       this.eventFired = true;
     }
     object.addEventListener(event, event_listener);
   }
 }
 
+// Layout tests default to denying permissions, but to test the Bluetooth
+// chooser we need to be in the "prompt" state.
+testRunner.setPermission("bluetooth-guard", "prompt", location.origin, location.origin);
+
 // Bluetooth tests sometimes have left-over state that could leak into the
 // next test. add_result_callback which is exposed by testharness.js allows us
 // to clean up this state after each test. In the future we will split tests
 // into separate files so that we don't have to add this callback ourselves.
 // TODO(ortuno): Split tests into separate files.
 // https://crbug.com/554240
 add_result_callback(() => {
   // At the end of each test we clean up all the leftover data in the browser,
   // including revoking permissions. This happens before the test document is
   // detached. Once the document is detached any device that connected tries
   // to disconnect but by then the document no longer has permission to
   // interact with the device. So before we clean up the browser data
   // we change the visibility which results in all devices disconnecing.
   // TODO(ortuno): Remove setPageVisibility hack. In the future, the browser
   // will notify the renderer that the device disconnected so we won't need
   // this hack.
   // https://crbug.com/581855
   testRunner.setPageVisibility('hidden');
   testRunner.setPageVisibility('visible');
   testRunner.setBluetoothMockDataSet('');
 });