Roll src/third_party/skia/ a5ab9ec29..c60fee0f1 (8 commits).
Roll src/third_party/skia/ a5ab9ec29..c60fee0f1 (8 commits).

https://chromium.googlesource.com/skia.git/+log/a5ab9ec295b2..c60fee0f15c7

$ git log a5ab9ec29..c60fee0f1 --date=short --no-merges --format='%ad %ae %s'
2016-03-07 herb Rework files and add test cases.
2016-03-07 msarett Revert of Update Skia's YUV API (patchset #5 id:160001 of https://codereview.chromium.org/1716523002/ )
2016-03-07 benjaminwagner Revert of Add BigRectGM. (patchset #2 id:20001 of https://codereview.chromium.org/1758113005/ )
2016-03-07 msarett Update Skia's YUV API
2016-03-07 benjaminwagner Add BigRectGM.
2016-03-07 update-skps Update SKP version
2016-03-07 msarett Use a smart pointer for SkColorSpace factories
2016-03-07 robertphillips Add SkSpecialImage-based methods to SkImageFilter

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

Review URL: https://codereview.chromium.org/1772693003

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#379625}

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