Refactor SkLiteDL to no longer extend SkDrawable.

Change-Id: Ieaa849bceba0e98e4c99491c721fe945a0694e68
Reviewed-on: https://skia-review.googlesource.com/9111
Reviewed-by: Mike Klein <mtklein@chromium.org>
Reviewed-by: Herb Derby <herb@google.com>
Reviewed-by: Stan Iliev <stani@google.com>
Commit-Queue: Derek Sollenberger <djsollen@google.com>
9 files changed