src/gpu/GrBlockAllocator -> src/core/SkBlockAllocator
src/gpu/GrTBlockList -> src/core/SkTBlockList
Tests and references also renamed.
Bug: skia:12330
Change-Id: I5fad05faa3dcecd89a0a478dcf30c090ea7589f5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/441477
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
