Cherry-pick: Define SK_USE_FREETYPE_EMBOLDEN on Android

(From https://codereview.chromium.org/411313002/ by h.joshi@samsung.com:
Colored Emoji not drawn in Chrome if font style is set as Bold.
When Bold font is asked, then Skia try to generate image/bitmap from
path (if Bold font is not present) which is not correct case for Colored
Emoji bitmap font.)

Define SK_USE_FREETYPE_EMBOLDEN to prefer FreeType's emboldeing
algorithm to Skia's.

BUG=397069
R=h.joshi
TBR=bungeman

Review URL: https://codereview.chromium.org/800133008

Cr-Commit-Position: refs/heads/master@{#310662}

Bug: 19346255
Change-Id: If83ba41f203f4acdb9021bff32c351e86d4afa2d
1 file changed