Pass ASCII to url_formatter::IDNToUnicode.

The function is explicitly commented to take only ASCII, not UTF-8. Blink does
already check this upstream of the call site, but it's both clearer and
(marginally) faster to use WebString::Ascii rather than WebString::Utf8.

Change-Id: I4d408df75f0c78aa18868240f771c242ebd35902
Reviewed-on: https://chromium-review.googlesource.com/1066594
Reviewed-by: Kentaro Hara <[email protected]>
Commit-Queue: Jeremy Roman <[email protected]>
Cr-Commit-Position: refs/heads/master@{#560450}
1 file changed