Color filters and blenders are currently not supported for tracing,
because we don't have access to the pixel coordinate, and so there is
nothing to compare the debug-trace coordinate with.
Change-Id: I7fe7fb4955b002432046ceef61c6f0a4c721a581
Bug: skia:12708
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/481278
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>