Roll src/third_party/skia/ 0ab977f23..356f7c260 (3 commits).

Roll src/third_party/skia/ 0ab977f23..356f7c260 (3 commits).

https://skia.googlesource.com/skia.git/+log/0ab977f2314d..356f7c2600ef

$ git log 0ab977f23..356f7c260 --date=short --no-merges --format='%ad %ae %s'
2017-01-10 reed support external raster handles
2017-01-10 mtklein remove xbyak experiment
2017-01-10 msarett Make SkImage_Base::onReadPixels() pure virtual


Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, see:
http://www.chromium.org/developers/tree-sheriffs/sheriff-details-chromium#TOC-Failures-due-to-DEPS-rolls


CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel
TBR=kjlubick@google.com

[skia-deps-roller, 2017-01-10 17:45:48]

The CQ bit was checked by skia-deps-roller@chromium.org

[commit-bot: I haz the power, 2017-01-10 17:46:02]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-10 19:32:14]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484070348057720, "parent_rev":
"780fd7effb09f3975ae14f7b6fc501ce56cf96e5", "commit_rev":
"849c6f79f019664a0cf223e9a03157c5c4bf8e80"}

[skia-deps-roller, 2017-01-10 19:43:08]

Already rolled past 356f7c2600ef54237fb8678cf63d5953f065b7da; closing this roll.

[commit-bot: I haz the power, 2017-01-10 19:44:27]

Prior attempt to commit was detected, but we were not able to check whether the
issue was successfully committed. Please check Git history manually and re-check
CQ or close this issue as needed.