Roll external/skia f7281db422b7..f29caf1433e3 (7 commits)

https://skia.googlesource.com/skia.git/+log/f7281db422b7..f29caf1433e3

2019-11-15 bsalomon@google.com Replace GrTextureDomainEffect with GrDomainEffect.
2019-11-15 kjlubick@google.com [canvaskit] Request an 8 bit stencil buffer from the WebGL 1/2 context
2019-11-15 robertphillips@google.com Respect the max indexBuffer limits in the bulk texture draw API (take 2)
2019-11-15 kjlubick@google.com [canvaskit] Swap font resolution order for emoji test
2019-11-15 herb@google.com Remove indexes from Geometry in the text op
2019-11-15 jvanverth@google.com Add flag to Viewer to trigger continuous redraw.
2019-11-15 robertphillips@google.com Revert "Reland "Reland "Reland "Implement sample mask and sample locations support in Vulkan""""

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://skia-autoroll.corp.goog/r/android-master-autoroll
Please CC nifong@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

Test: Presubmit checks will test this change.
Change-Id: I62fa4cdb85dffa3e6c2422cabae69e99939df241
Exempt-From-Owner-Approval: The autoroll bot does not require owner approval.