Unexpected end of style sheet in @font-face rule discards it rather than closes all...

Unexpected end of style sheet in @font-face rule discards it rather than closes all open constructs
https://bugs.webkit.org/show_bug.cgi?id=89980

Reviewed by Antti Koivisto.

Source/WebCore:

Use the "closing_brace" at the end of font_face rather than the explicit "'}' maybe_space".

Test: fast/css/font-face-unexpected-end.html

* css/CSSGrammar.y:

LayoutTests:

* fast/css/font-face-unexpected-end-expected.html: Added.
* fast/css/font-face-unexpected-end.html: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@121337 268f45cc-cd09-0410-ab3c-d52691b4dbfc