Service Worker: Clients.openWindow() should allow opening x-origin URLs

LayoutTests/http/tests/serviceworker/chromium/resources/clients-openwindow.js

 // This helper will setup a small test framework that will use TESTS and run
 // them sequentially and call self.postMessage('quit') when done.
 // This helper also exposes |client|, |postMessage()|, |runNextTestOrQuit()|,
 // |synthesizeNotificationClick()| and |initialize()|.
 importScripts('sw-test-helpers.js');
 
 var TESTS = [
     function testWithNoNotificationClick() {
         clients.openWindow('/').catch(function(e) {
             self.postMessage('openWindow() can\'t open a window without a user interaction');
             self.postMessage('openWindow() error is ' + e.name);
         }).then(runNextTestOrQuit);
     },
 
     function testOpenCrossOriginWindow() {
         synthesizeNotificationClick().then(function(e) {
-            clients.openWindow('https://test.com/').catch(function(e) {
-                self.postMessage('openWindow() can\'t open cross origin windows');
-                self.postMessage('openWindow() error is ' + e.name);
+            clients.openWindow('https://test.com/').then(function(c) {
+                self.postMessage('openWindow() can open cross origin windows');
+                self.postMessage('openWindow() result: ' + c);
             }).then(runNextTestOrQuit);
         });
     },
 
     function testOpenNotControlledWindow() {
         synthesizeNotificationClick().then(function(e) {
             clients.openWindow('/').then(function(c) {
                 self.postMessage('openWindow() can open not controlled windows');
                 self.postMessage('openWindow() result: ' + c);
             }).then(runNextTestOrQuit);
@@ skipping 17 matching lines @@
 self.onmessage = function(e) {
     if (e.data == 'start') {
         initialize().then(runNextTestOrQuit);
     } else {
         initialize().then(function() {
             self.postMessage('received unexpected message');
             self.postMessage('quit');
         });
     }
 };