Improve <selectedoption> performance #47467
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This patch improves the performance of <selectedoption> by replacing the
SynchronousMutationObserver with the existing async MutationObserver in
HTMLOptionElement.
The change from sync to async impacts some tests. The timing is being
discussed in a standards issue here:
whatwg/html#10520
Fixed: 336844298
Change-Id: I9693de9cf35913e7daaebb364c4923dcd4a2dc39
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5758741
Reviewed-by: Mason Freed <[email protected]>
Commit-Queue: Joey Arhar <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1337462}