Turn on rendertarget sorting

Change-Id: I1315d0864ee0963569c23f70c1185488b5216f99
Reviewed-on: https://skia-review.googlesource.com/117686
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
3 files changed