Roll src/third_party/skia 3a7701c:7b60c2c
Roll src/third_party/skia 3a7701c:7b60c2c

Summary of changes available at:
https://chromium.googlesource.com/skia/+log/3a7701c..7b60c2c

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

Commits in this roll:
7b60c2c robertphillips@google.com Revert of Have GrRectBlurEffect use Linear filtering (rather than Nearest Neighbor) (patchset #1 id:1 of https://codereview.chromium.org/1378023004/ )
3e77ba9 vbuzinov@nvidia.com Implement stencil clipping in mixed sampled render targets
6634cbb scroggo@google.com Small DM cleanup
2d70bcc robertphillips@google.com Have GrRectBlurEffect use Linear filtering (rather than Nearest Neighbor)
8b17dcb scroggo@google.com Avoid copies in SkMasks constructor
f326029 herb@google.com Add some of my favorite headers to gyp.
856e9d9 reed@google.com Revert[4] of add ImageShader, sharing code with its Bitmap cousin
8a6697a joshualitt@chromium.org Fix for nexus 5 crashing in GL benches
7fac5af scroggo@google.com Fix bug testing SkCodec for ICO
56c6a11 mtklein@chromium.org CMake for Windows

Review URL: https://codereview.chromium.org/1382843002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#351801}

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