remove GetTable* APIs from SkFontHost, and rely on SkTypeface::onGetTable*

default impls call SkFontStream, and rely on SkTypeface::onOpenStream
Review URL: https://codereview.chromium.org/13001002

git-svn-id: http://skia.googlecode.com/svn/trunk@8310 2bbb7eff-a529-9590-31e7-b0007b416f81
7 files changed