Roll src/third_party/skia 37fffc6:426388e

Roll src/third_party/skia 37fffc6:426388e

Summary of changes available at:
https://chromium.googlesource.com/skia/+log/37fffc6..426388e

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

Commits in this roll:
426388e robertphillips@google.com Revert of Add normal map sample (patchset #6 id:100001 of https://codereview.chromium.org/1212813009/)
0067ff5 joshualitt@chromium.org fix up test create functions
8e0da72 jvanverth@google.com Add normal map sample
0007bde halcanary@google.com SkAdvancedTypefaceMetrics zeroing constructor
3ba043f dcheng@chromium.org Remove another assertion that a reference is non-null.
4f3ad29 ethannicholas@google.com disabled GrAALinearizingConvexRenderer for now
8179341 joshualitt@chromium.org add ability to get FBO ID to Surface
3c06511 reed@google.com Add image->bitmap

Review URL: https://codereview.chromium.org/1228743003

Cr-Commit-Position: refs/heads/master@{#337974}