URL::protocolIsData() seems an expensive operation and it is called every time the size of an image is retrieved via CachedImage::imageSizeForRenderer().
<rdar://problem/126495895>
Pull request: https://github.com/WebKit/WebKit/pull/27272
Committed 277830@main (da92319fd54b): <https://commits.webkit.org/277830@main> Reviewed commits have been landed. Closing PR #27272 and removing active labels.