Bug 1944489 [wpt PR 50362] - [fetch-later] Fix incorrect quota behavior in same-origin iframes, a=testonly

Automatic update from web-platform-tests
[fetch-later] Fix incorrect quota behavior in same-origin iframes

This CL incorporate [recent spec changes][1] to solve various issue:
- Fix fetchLater requests made in same-origin iframes not respecting
  pending fetchLater requests from its parent and neighbor iframes.
- No longer perform complicated quota calculation in fetchLater
  algorithms to prevent from taking up [inflightKeepaliveBytes][2].
  This is left as an open spec question to solve in the future.

As a result, what this CL really changes:
- Update `GetAvailableDeferredQuota()` to take source frame instead of
  control frame, and update related implementation.
- Update DeferredLoader's `invoke_state_` to match current spec.

[1]: whatwg/fetch@139351f
[2]: https://fetch.spec.whatwg.org/#ref-for-request-keepalive-flag%E2%91%A1

NO_IFTTT=changes reflected in tools/metrics/histograms/metadata/blink/enums.xml

Bug: 40276121
Change-Id: Ie41ffdf7558860ff34901c547578ebf81189f3a9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6193934
Reviewed-by: Adam Rice <[email protected]>
Commit-Queue: Ming-Ying Chung <[email protected]>
Reviewed-by: Takashi Toyoshima <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1412755}

--

wpt-commits: e073ec350612006d8ef841a3759226edcd532e20
wpt-pr: 50362

Author: mingyc

testing/web-platform/tests/fetch/fetch-later/quota/same-origin-iframe/multiple-iframes.tentative.https.window.js

@@ -31,28 +31,32 @@ promise_test(async _ => {
     referrer: '',
   });
 
-  // Queues a max bytes request in the 2nd same-origin iframe.
-  // TODO(crbug.com/40276121): Confirm whether this should be rejected from
-  // https://github.com/whatwg/fetch/pull/1647/files#r1919611046
+  // Queues a max bytes request to `HTTPS_ORIGIN` in the 2nd same-origin iframe,
+  // which should be rejected because the target URL's origin `HTTPS_ORIGIN`
+  // already has 64kb pending from 1st request.
   await loadFetchLaterIframe(HTTPS_ORIGIN, {
     targetUrl: requestUrl,
     method: 'POST',
     bodyType: dataType,
     bodySize: getRemainingQuota(QUOTA_PER_ORIGIN, requestUrl, headers),
     // Required, as the size of referrer also take up quota.
     referrer: '',
+    expect: new FetchLaterIframeExpectation(
+        FetchLaterExpectationType.ERROR_DOM, 'QuotaExceededError'),
   });
 
-  // Queues a max bytes request in the root document.
-  // TODO(crbug.com/40276121): Confirm whether this should be rejected from
-  // https://github.com/whatwg/fetch/pull/1647/files#r1919611046
-  fetchLater(requestUrl, {
-    method: 'POST',
-    body: generatePayload(
-        getRemainingQuota(QUOTA_PER_ORIGIN, requestUrl, headers), dataType),
-    // Required, as the size of referrer also take up quota.
-    referrer: ''
-  });
+  // Queues a max bytes request in the root document, which should also be
+  // rejected, because the target URL's origin `HTTPS_ORIGIN` already has 64kb
+  // pending from 1st request.
+  assert_throws_dom(
+      'QuotaExceededError',
+      () => fetchLater(requestUrl, {
+        method: 'POST',
+        body: generatePayload(
+            getRemainingQuota(QUOTA_PER_ORIGIN, requestUrl, headers), dataType),
+        // Required, as the size of referrer also take up quota.
+        referrer: '',
+      }));
 
   // Release quota taken by the pending requests for subsequent tests.
   for (const element of document.querySelectorAll('iframe')) {