add SkCreateTypefaceFromCTFont() to create a typeface directly from a CTFontRef

Compute the actual style from the returned CTFontRef, rather than assuming the
request will always be met.



git-svn-id: http://skia.googlecode.com/svn/trunk@979 2bbb7eff-a529-9590-31e7-b0007b416f81
4 files changed