tree cc1eae7fba6d28302b1d06fdfe004a11c85dd07c
parent d327a1c7e38eccc1295dfdc2225c56447e1f151b
author philipj@opera.com <philipj@opera.com> 1434023617 +0000
committer philipj@opera.com <philipj@opera.com> 1434023617 +0000

Make createAttributeNS's qualifiedName argument non-nullable

Before this change, document.createAttributeNS("foo", null) would throw
"Failed to execute 'createAttributeNS' on 'Document': The qualified name
provided is empty." because the null string was treated as empty.

After this change, document.createAttributeNS("foo", null) will create
an Attr object with localName "null", which matches Firefox and IE.

Usage of this API is extremely low, making the risk equally so:
https://www.chromestatus.com/metrics/feature/timeline/popularity/112

BUG=460722

Review URL: https://codereview.chromium.org/1164123003

git-svn-id: svn://svn.chromium.org/blink/trunk@196940 bbb929c8-8fbe-4397-9dbb-9b2b20218538