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/gyp@11317 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gmslides.gypi b/gmslides.gypi
index 2ddb84f..d985807 100644
--- a/gmslides.gypi
+++ b/gmslides.gypi
@@ -25,6 +25,7 @@
     '../gm/circles.cpp',
     '../gm/circularclips.cpp',
     '../gm/clippedbitmapshaders.cpp',
+    '../gm/coloremoji.cpp',
     '../gm/colorfilterimagefilter.cpp',
     '../gm/colormatrix.cpp',
     '../gm/colortype.cpp',