Update buildSVGPathByteStreamFromString() to take a StringView to avoid constructing Strings in some cases. A StringView is sufficient for parsing.
Pull request: https://github.com/WebKit/WebKit/pull/15345
Committed 265573@main (6326fffd83e2): <https://commits.webkit.org/265573@main> Reviewed commits have been landed. Closing PR #15345 and removing active labels.
<rdar://problem/111430653>