Roll src/third_party/skia/ 570f8af47..02aed95f9 (2 commits).

https://chromium.googlesource.com/skia.git/+log/570f8af47305..02aed95f9c7c

$ git log 570f8af47..02aed95f9 --date=short --no-merges --format='%ad %ae %s'
2016-07-30 mtklein Revert of GrFP can express distance vector field req.,  program builder declares variable for it (patchset #20 id:370001 of https://codereview.chromium.org/2114993002/ )
2016-07-30 mtklein Revert of Tidy up SkNx_neon. (patchset #3 id:40001 of https://codereview.chromium.org/2196773002/ )

CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
TBR=tomhudson@google.com

Review-Url: https://codereview.chromium.org/2201593003
Cr-Commit-Position: refs/heads/master@{#408879}
1 file changed