Use color filter to undo GBR (actually BRG)

This allows the via to work with GPU (where we don't render to N32).

Change-Id: I42e8457731a5ee51d14f7092eebd6efe72decd84
Reviewed-on: https://skia-review.googlesource.com/65822
Commit-Queue: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Mike Klein <mtklein@chromium.org>
1 file changed