consolidate SkBinaryWriteBuffers
It looks like the attached bug is about stack overflow when
constructing the two SkBinaryWriteBuffers (on the stack).
I can't find any really obvious reason we need to keep the
path effect and the mask effect separate here any longer,
so I've consolidated into a single buffer and tag for both.
Minor refactoring: static, const, etc.
Bug: chromium:891693
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I48c411968b62633f13a83e24c3a202a457485b6d
Reviewed-on: https://skia-review.googlesource.com/c/161160
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Herb Derby <herb@google.com>
5 files changed