This patch makes SkScalerContext_FreeType to be the only one which embolden the glyphs.

Add bench cases for different font styles.

BUG=
R=bungeman@google.com, reed@google.com

Author: zheng.xu@arm.com

Review URL: https://codereview.chromium.org/101423004

git-svn-id: http://skia.googlecode.com/svn/trunk@12792 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed