tree 03b384f0ce05a016317b5594613b0933edaaedb4
parent 75bb047920d838217404845019ee6180be189d0f
author John Messerly <jmesserly@google.com> 1436207531 -0700
committer John Messerly <jmesserly@google.com> 1436207531 -0700

fix parse error with foreignObject end tag

it appears we inherited this from html5lib:
https://github.com/html5lib/html5lib-python/blob/5e3d432998b027cd2d200446f157d13a3461a92b/html5lib/html5parser.py#L2448
You'll notice the node.name.translate(asciiUpper2Lower) immediately below, in the same comparison

Most likely, this is not caught because it's not common to display HTML parse errors, and the actual tree construction is correct.

This fix does match the spec:
https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inforeign
See "Any other end tag, step 2":
> If node's tag name, converted to ASCII lowercase, is not the same as the tag name of the token, then this is a parse error.

We were missing the converted to lowercase step.

R=sigmund@google.com

Review URL: https://codereview.chromium.org//1222713008.