tree ca96bf47ea22d0030fc973acf23e92c2111286ae
parent 7f9ebd9edcd4324d4ca3b2c5fdc64a09092e5c6f
author Kevin McNee <mcnee@chromium.org> 1644620970 -0800
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1644621736 -0800

Don't crash if creating a portal element with a shutdown document

Document::GetExecutionContext is null when the document has shutdown and
we were attempting to access it during the creation of a portal element
with a destroyed document as the receiver. We now check for a null
ExecutionContext.

We also update the comment on Document::GetExecutionContext to
communicate that it can be null in non-test cases.

Bug: 1283699
Change-Id: I56c3baeaa3eb725cc7d2ce0288a7fd4b78e00a35
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3457802
Reviewed-by: Jeremy Roman <jbroman@chromium.org>
Commit-Queue: Kevin McNee <mcnee@chromium.org>
Cr-Commit-Position: refs/heads/main@{#970187}