Roll src/third_party/skia/ 6f1d36cc5..7a6c9f7be (25 commits).

Roll src/third_party/skia/ 6f1d36cc5..7a6c9f7be (25 commits).

https://skia.googlesource.com/skia.git/+log/6f1d36cc54dc..7a6c9f7be115

$ git log 6f1d36cc5..7a6c9f7be --date=short --no-merges --format='%ad %ae %s'
2017-01-14 brianosman Revert "Add SkImageInfoValidConversion() and SkImageInfoIsValid"
2017-01-14 brianosman Revert "Enforce our rules about valid images when making textures"
2017-01-13 brianosman Enforce our rules about valid images when making textures
2017-01-14 reed savelayer gm
2017-01-14 reed Revert "Exercise concave analytic AA"
2017-01-14 liyuqian Exercise concave analytic AA
2017-01-13 reed Revert "move SkDevice.h and SkBitmapDevice.h contents in to src headers"
2017-01-13 reed move SkDevice.h and SkBitmapDevice.h contents in to src headers
2017-01-13 msarett Fix ASAN
2017-01-13 herb Fix syntax error for adjusting old stdc++ headers.
2017-01-13 mtklein Fix Android roll
2017-01-13 robertphillips Use GrRenderTargetContext::readPixels in GrTextureToYUVPlanes
2017-01-13 brianosman Remove (unused) YUV API from SkPixelRef
2017-01-13 mtklein SkSplicer: implement load_tables and matrix_3x4
2017-01-13 bungeman Decode system font weight correctly on Mac.
2017-01-13 mtklein Revert "Optimize SkBlend by using NEON intrinsics"
2017-01-13 jvanverth Move Android shadow rendering interface to util library.
2017-01-13 bsalomon Remove most modifiers of processors on GrPipelineBuilder
2017-01-05 ethannicholas Fixed another division by zero error in skslc
2017-01-13 msarett Fix out of bounds read in RP::load_tables_u16_be()
2017-01-13 deanm Simplify k.w calculation in getConicKLM.
2017-01-12 senorblanco Switch a bunch of tests to use DEF_SIMPLE_GM.
2017-01-13 msarett Add SkImageInfoValidConversion() and SkImageInfoIsValid
2017-01-13 herb Introduce SkArenaAlloc - should be fast for POD types and RAII for types with dtors.
2017-01-13 lsalzman simplify round_down_to_int by using ceil instead of floor


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=jcgregorio@google.com

[skia-deps-roller, 2017-01-15 04:32:04]

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

[commit-bot: I haz the power, 2017-01-15 04:32:17]

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, 2017-01-15 05:39:58]

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

[commit-bot: I haz the power, 2017-01-15 05:39:59]

Try jobs failed on following builders:
  linux_trusty_blink_rel on master.tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/linux_trusty_blink_rel/b...)

[skia-deps-roller, 2017-01-15 05:40:31]

Commit queue failed; closing this roll.