Roll src/third_party/skia 87a5c9f:036fd8e

Roll src/third_party/skia 87a5c9f:036fd8e

Summary of changes available at:
https://chromium.googlesource.com/skia/+log/87a5c9f..036fd8e

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

Commits in this roll:
036fd8e wangyix@google.com Added TestCreate for SkComposeShader;  will pick two random child procs that don't have children of their own.  This prevents creating an arbitrarily large tree of procs.  Also, it will choose a random coefficient mode for the xfermode.
894a2e4 hendrikw@chromium.org skia: Initialize value passed to GetShaderiv in GLBench
925979f mtklein@chromium.org Make SkGraphics::Term a no-op, stop calling it.

Committed: https://crrev.com/1be743c680f084fb2998e5d1335db3af37476d1b
Cr-Commit-Position: refs/heads/master@{#347830}

[skia-deps-roller, 2015-09-08 22:30:54]

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

[skia-deps-roller, 2015-09-08 22:30:55]

This roll was created by the Blink AutoRollBot.
    http://www.chromium.org/blink/blinkrollbot

[commit-bot: I haz the power, 2015-09-08 22:31:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1323153003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1323153003/1

[commit-bot: I haz the power, 2015-09-08 23:44:04]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-08 23:44:42]

Patchset 1 (id:??) landed as
https://crrev.com/1be743c680f084fb2998e5d1335db3af37476d1b
Cr-Commit-Position: refs/heads/master@{#347830}