The function isValidUserAgentHeaderValue is only used by code that requires GLib, so move it behind USE(GLIB).
Created attachment 388158 [details] Patch
The commit-queue encountered the following flaky tests while processing attachment 388158 [details]: editing/spelling/spellcheck-attribute.html bug 206178 (authors: g.czajkowski@samsung.com, mark.lam@apple.com, and rniwa@webkit.org) The commit-queue is continuing to process your patch.
Comment on attachment 388158 [details] Patch Clearing flags on attachment: 388158 Committed r254818: <https://trac.webkit.org/changeset/254818>
All reviewed patches have been landed. Closing bug.
<rdar://problem/58734822>