Roll src/third_party/skia/ 7ea5cb183..43437c2f1 (13 commits).

Roll src/third_party/skia/ 7ea5cb183..43437c2f1 (13 commits).

https://chromium.googlesource.com/skia.git/+log/7ea5cb18389d..43437c2f1928

$ git log 7ea5cb183..43437c2f1 --date=short --no-merges --format='%ad %ae %s'
2016-02-24 benjaminwagner Round to nearest in ScalarTo256.
2016-02-24 halcanary Documentation: sync-and-gyp design document
2016-02-24 benjaminwagner Change SkUnitScalarClampToByte to more accurate implementation.
2016-02-24 reed remove debugging printf
2016-02-24 halcanary SkPDF/Bench: add bench for SkPDFCreateBitmapObject
2016-02-24 joshualitt fixup GLPrograms textblob todo
2016-02-24 caryclark fix path ops fuzz bug
2016-02-24 mtklein Turn off DM --pre_log on the bots.  Too spammy.
2016-02-24 jvanverth Use ARM fixes for SDF encoding.
2016-02-24 benjaminwagner Revert of Simple cleanups related to SkFixed. (patchset #4 id:120001 of https://codereview.chromium.org/1683743005/ )
2016-02-24 ethannicholas Revert of Include glGetMultisamplefv API (patchset #1 id:1 of https://codereview.chromium.org/1720963002/ )
2016-02-24 reed extend xfermodes gm to include 3 custom modes
2016-02-24 benjaminwagner Ensure the Gaussian tail of circle blurs goes to zero.


CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
TBR=ethannicholas@google.com

[skia-deps-roller, 2016-02-24 19:27:52]

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

[commit-bot: I haz the power, 2016-02-24 19:35:46]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1729263003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1729263003/1

[commit-bot: I haz the power, 2016-02-24 21:21:56]

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

[commit-bot: I haz the power, 2016-02-24 21:21:56]

Try jobs failed on following builders:
  linux_blink_rel on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/8...)

[skia-deps-roller, 2016-02-24 21:22:22]

Commit queue failed; closing this roll.