Don't run permissions iframe tests concurrently with top-level tests

This also marks the test as flaky.

Bug: 1411486
Change-Id: Ife3665e2e7985bf6951e8be8b185eaaeb4a90a98
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4208689
Reviewed-by: Johann Hofmann <[email protected]>
Commit-Queue: Chris Fredrickson <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1103865}

storage-access-api/helpers.js

@@ -11,7 +11,7 @@ function processQueryParams() {
 
 // Create an iframe element, set it up using `setUpFrame`, and optionally fetch
 // tests in it. Returns the created frame, after it has loaded.
-function CreateFrameHelper(setUpFrame, fetchTests) {
+async function CreateFrameHelper(setUpFrame, fetchTests) {
   const frame = document.createElement('iframe');
   const promise = new Promise((resolve, reject) => {
     frame.onload = () => resolve(frame);
@@ -21,7 +21,7 @@ function CreateFrameHelper(setUpFrame, fetchTests) {
   setUpFrame(frame);
 
   if (fetchTests) {
-    fetch_tests_from_window(frame.contentWindow);
+    await fetch_tests_from_window(frame.contentWindow);
   }
   return promise;
 }

storage-access-api/storage-access-permission.sub.https.window.js

@@ -27,8 +27,10 @@
       assert_equals(state, "granted");
     }, "Permissions grants are observable across same-origin iframes");
 
-    // Finally run the simple tests below in a separate cross-origin iframe.
-    RunTestsInIFrame('https://{{domains[www]}}:{{ports[https][0]}}/storage-access-api/resources/permissions-iframe.https.html');
+    promise_test(async (t) => {
+      // Finally run the simple tests below in a separate cross-origin iframe.
+      await RunTestsInIFrame('https://{{domains[www]}}:{{ports[https][0]}}/storage-access-api/resources/permissions-iframe.https.html');
+    }, "IFrame tests");
     return;
   }