GrQuadPerEdgeAA::Tessellator owns GrVertexWriter

Change-Id: I3c8bf48dda061aa9d318b9f81f22608fdd68fcbd
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/255786
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
5 files changed