Add font "index" to lmp parser.

Add font "index" to lmp parser.

When ttc index support was added, it was added and tested on Android
with the jb parser. This adds it to the lmp parser.

Committed: https://skia.googlesource.com/skia/+/b8a1d30a42d13ae83690b2d854a024d9b56e7b71

[bungeman-skia, 2015-03-20 21:25:45]

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

[bungeman-skia, 2015-03-20 21:27:37]

The CQ bit was checked by bungeman@google.com

[commit-bot: I haz the power, 2015-03-20 21:27:56]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1023313002/20001

[commit-bot: I haz the power, 2015-03-20 21:27:57]

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 2015-03-21 03:27 UTC

[commit-bot: I haz the power, 2015-03-20 22:18:09]

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 2015-03-21 04:18 UTC

[commit-bot: I haz the power, 2015-03-21 04:18:10]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-03-21 04:18:12]

No LGTM from a valid reviewer yet. Please ask for an LGTM from a
full Skia committer from
https://skia.googlesource.com/skia/+/master/CQ_COMMITTERS

[djsollen, 2015-03-23 13:23:06]

lgtm

[bungeman-skia, 2015-03-23 16:03:13]

The CQ bit was checked by bungeman@google.com

[commit-bot: I haz the power, 2015-03-23 16:03:26]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1023313002/20001

[commit-bot: I haz the power, 2015-03-23 16:08:57]

Committed patchset #2 (id:20001) as
https://skia.googlesource.com/skia/+/b8a1d30a42d13ae83690b2d854a024d9b56e7b71