proposed: inclusive gradients, exclusive images

Change-Id: I5821f823a4c0df54d4388a2f455767f58ae646b8
Reviewed-on: https://skia-review.googlesource.com/16547
Reviewed-by: Florin Malita <fmalita@chromium.org>
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
4 files changed