Avoid hacking on the case of a typename.

Avoid hacking on the case of a typename.

This allows me to mention the ImageData type without it being transformed to
"imagedata".  It may have some side-effects where we've been sloppy with
typenames elsewhere, but let me know if you see any, and I'll fix them.

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=244332

[Jeffrey Yasskin, 2014-01-10 01:14:28]

I don't see anywhere in the existing docs that this affects (my use is from a
.json file with no defined properties), but here's http://go/jyasskin-demo/ in
case you find anything.

[not at google - send to devlin, 2014-01-10 23:08:40]

lgtm, if this does break anything perhaps the casing can be handled by CSS
anyway.

[commit-bot: I haz the power, 2014-01-11 00:21:36]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jyasskin@chromium.org/132203009/1

[commit-bot: I haz the power, 2014-01-11 03:21:53]

Change committed as 244332