Add a test for color bitmap fonts.

This CL also includes a sample font from https://code.google.com/p/color-emoji/

R=reed@google.com

Review URL: https://codereview.chromium.org/24181002

git-svn-id: http://skia.googlecode.com/svn/trunk@11317 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed