Support -apple-system-font on OS X
https://bugs.webkit.org/show_bug.cgi?id=133382

Source/WebCore:
Reviewed by Simon Fraser.

Guard on both family names: "-apple-system-font" and "-webkit-system-font"

Test: platform/mac/fast/text/systemFont.html

* platform/mac/WebFontCache.mm:
(+[WebFontCache internalFontWithFamily:traits:weight:size:]):

LayoutTests:
This test makes sure that -apple-system-font is rendered the same way as -webkit-system-font.

Reviewed by Simon Fraser.

* platform/mac-mountainlion/platform/mac/fast/text/systemFont-expected.txt: Updated.
* platform/mac/fast/text/systemFont.html: Tests -apple-system-font in addition to -webkit-system-font.
* platform/mac/platform/mac/fast/text/systemFont-expected.txt: Updated.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@169474 268f45cc-cd09-0410-ab3c-d52691b4dbfc
6 files changed