Convert some async_test(async ...) cases to promise_tests

Passing an async function to async_test will soon be disallowed in WPT,
as any asserts thrown will be turned into unhandled promise rejections
and the test will timeout. If a test needs async functions it should use
promise_test instead.

(The naming conflict is a sad historical legacy; WPT had async_test long
before EcmaScript spec'd promises!)

Bug: https://github.com/web-platform-tests/wpt/issues/21435
Change-Id: I0a31872525844a1540aea548e329929e8097663e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2414923Reviewed-by: John Rummell <jrummell@chromium.org>
Reviewed-by: Philip Jägenstedt <foolip@chromium.org>
Commit-Queue: Stephen McGruer <smcgruer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#809464}

third_party/blink/web_tests/http/tests/security/document-domain-canonicalizes-iframe.html

@@ -18,11 +18,10 @@
   // Navigate the iframe to URLs whose host aren't canonical. They need to be
   // percent encoded. Several navigation are made to ensure potential assertions
   // can be reached before the end of the test. See https://crbug.com/901489.
-  async_test(async function(t) {
+  promise_test(async function(t) {
     await navigate_iframe("http://foo,.example.test/resources/dummy.html");
     await navigate_iframe("http://bar,.example.test/resources/dummy.html");
     await navigate_iframe("http://baz,.example.test/resources/dummy.html");
-    t.done();
   }, "Navigate iframe to URL with non-canonicalized hostname");
 </script>
 </body>

third_party/blink/web_tests/http/tests/webfont/font-face-in-multiple-sets.html

@@ -3,11 +3,10 @@
 <script src="../resources/testharnessreport.js"></script>
 <iframe id="i"></iframe>
 <script>
-async_test(async function(t) {
+promise_test(async function(t) {
   let face = new FontFace("face", "url(../resources/Ahem.ttf)", {});
   await face.load();
   i.contentDocument.fonts.add(face);
   document.fonts.add(face);
-  t.done();
 });
 </script>

third_party/blink/web_tests/media/encrypted-media/encrypted-media-context-destroyed.html

@@ -16,17 +16,18 @@
                 return iframe;
             }
 
-            async_test(async function(test)
+            promise_test(async function(test)
             {
                 iframe = allociframe();
                 keySystemAccess = await iframe.contentWindow.navigator.requestMediaKeySystemAccess('org.w3.clearkey', getSimpleConfiguration());
                 keys = await keySystemAccess.createMediaKeys();
+                const domException = iframe.contentWindow.DOMException;
                 document.body.removeChild(iframe);
-                keys.getStatusForPolicy({minHdcpVersion : '1.0'}).then(function(result) {
-                    assert_unreached('getStatusforPolicy() should fail');
-                }, function(error) {
-                    test.done();
-                });
+                return promise_rejects_dom(test,
+                    'InvalidAccessError',
+                    domException,
+                    keys.getStatusForPolicy({minHdcpVersion : '1.0'}),
+                    'getStatusforPolicy() should fail');
            }, 'Test context destruction.');
         </script>
     </body>

third_party/blink/web_tests/security/srcdoc-include-file-sandboxed.html

@@ -28,7 +28,7 @@
     );
   };
 
-  async_test(async function(t) {
+  promise_test(async function(t) {
     // 1. Initial navigation to about:srcdoc.
     assert_equals("error", await message());
 
@@ -47,7 +47,5 @@
     //    (4).
     iframe.srcdoc = iframe.srcdoc;
     assert_equals("error", await message());
-
-    t.done();
   });
 </script>

third_party/blink/web_tests/security/srcdoc-include-file.html

@@ -22,7 +22,7 @@
     return new Promise(resolved => window.onScriptLoaded = resolved);
   };
 
-  async_test(async function(t) {
+  promise_test(async function(t) {
     // 1. Check file subresource can be loaded from the initial about:srcdoc
     //    document.
     await scriptLoaded();
@@ -30,6 +30,5 @@
     // 2. Check file subresource can be loaded again after a new navigation to
     //    about:srcdoc.
     await scriptLoaded();
-    t.done();
   });
 </script>

third_party/blink/web_tests/wpt_internal/webgpu/000_run_me_first.html

@@ -11,11 +11,10 @@
 <script>
   'use strict';
 
-  async_test(async t => {
+  promise_test(async t => {
     const adapter = await navigator.gpu.requestAdapter();
     assert_true(adapter !== null);
     const device = await adapter.requestDevice();
     assert_true(device !== null);
-    t.done();
   });
 </script>