Roll external/skia 1450a4740..b6d04556c (20 commits)
https://skia.googlesource.com/skia.git/+log/1450a4740..b6d04556c
2019-04-04 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-04-03 reed@google.com no more legacy enum references
2019-04-03 halcanary@google.com Fix SkTypeface_Mac::getGlyphToUnicodeMap
2019-04-03 fmalita@chromium.org [skottie] Fix gradient ramp for non-solid layers
2019-04-03 ethannicholas@google.com fix SkSL constant comparisons involving negated vectors
2019-04-03 ethannicholas@google.com fixed error reporting in SkSL->Metal
2019-04-03 herb@google.com GM for SkOverdrawCanvas
2019-04-03 csmartdalton@google.com Add a cap to allow coverage counting or not
2019-04-03 mtklein@google.com set PNG compression level back to 1
2019-04-03 csmartdalton@google.com Rename GrPipeline::Flags to GrPipeline::InputFlags
2019-04-03 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-04-03 robertphillips@google.com Reset GrVkCommandBuffer's work status in end()
2019-04-03 herb@google.com Remove SkFindAndPlaceGlyph from gn
2019-04-03 bsalomon@google.com Track the number of resources that would become purgeable after flush in GrResourceCache.
2019-04-03 brianosman@google.com Fix the GLSL persistent cache (and add a config to test it)
2019-04-03 michaelludwig@google.com Support strict constraints for bulk texture sets
2019-04-03 halcanary@google.com SkMD5 returns digest
2019-04-03 herb@google.com Move overdraw canvas to using new painter
2019-04-03 mtklein@google.com split cpu+gpu work queues
2019-04-03 brianosman@google.com Reland "Remove the NullGL interface (and associated test context)"
The AutoRoll server is located here: https://autoroll-internal.skia.org/r/android-master-autoroll
Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md
If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.
Test: Presubmit checks will test this change.
Change-Id: Id60db40b5a472f9cc59390bafa87aaa43c53dc41
Exempt-From-Owner-Approval: The autoroll bot does not require owner approval.