GitLab

createElement() should assume the namespace is XHTML only if the
document is HTML-like.

New behavior matches to the standard and Firefox.

Bug: 807514
Change-Id: I1164612b6512c94de96bdefbf053e8f132f8b9f7
Reviewed-on: https://chromium-review.googlesource.com/894749
Commit-Queue: Kent Tamura <tkent@chromium.org>
Reviewed-by: Dominic Cooney <dominicc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#533221}