Roll src/third_party/skia 995b4bd:0faed58

Roll src/third_party/skia 995b4bd:0faed58

Summary of changes available at:
https://chromium.googlesource.com/skia/+log/995b4bd..0faed58

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

Commits in this roll:
0faed58 mtklein@chromium.org cmake_build: support SKIA_OUT and BUILDTYPE
59ce45f bsalomon@google.com Revert of Test that GrFragmentProcessors work without input colors. (patchset #2 id:20001 of https://codereview.chromium.org/1341853002/ )
72c58e7 bsalomon@google.com Test that GrFragmentProcessors work without input colors.
3833daa robertphillips@google.com Fix GPU-only snapping bug in mask blur rendering
efd50da reed@google.com impl preroll for all image backends
5a744b7 mtklein@chromium.org Have SkVarAlloc::alloc() use sk_malloc_throw.
a46ada5 mtklein@chromium.org SkValidatingReadBuffer: make sure we don't call readTypeface().
8725e53 reed@google.com fix leak in test

Review URL: https://codereview.chromium.org/1336143004

Cr-Commit-Position: refs/heads/master@{#348744}