Use traits instead of table for color glyph detection.

Use traits instead of table for color glyph detection.

The CTFont already knows if a font might contain color glyphs,
so use that information directly instead of guessing ourselves.

Committed: https://skia.googlesource.com/skia/+/98c251bc7eec5aa236700d9936c740f2744788db

[bungeman-skia, 2015-02-23 22:03:38]

bungeman@google.com changed reviewers:
+ mtklein@google.com

[bungeman-skia, 2015-02-23 22:03:45]

The CQ bit was checked by bungeman@google.com

[commit-bot: I haz the power, 2015-02-23 22:04:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/949933003/1

[commit-bot: I haz the power, 2015-02-23 22:04:29]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2015-02-24 04:04 UTC

[mtklein, 2015-02-23 22:23:17]

lgtm

[commit-bot: I haz the power, 2015-02-23 22:24:09]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/98c251bc7eec5aa236700d9936c740f2744788db

[bungeman-skia, 2015-02-24 16:46:53]

On 2015/02/23 22:24:09, I haz the power (commit-bot) wrote:
> Committed patchset #1 (id:1) as
> https://skia.googlesource.com/skia/+/98c251bc7eec5aa236700d9936c740f2744788db

Followed up with https://codereview.chromium.org/951723003/ .