Revert of Revert back to SkPictureData pictures.  Huge perf regression. (patchset #1 of https://codereview.chromium.org/496603002/)

Reason for revert:
Try again now that we have --bbh on nanobench and it's looking decent.

Original issue's description:
> Revert back to SkPictureData pictures.  Huge perf regression.
>
> http://skiaperf.com/#108
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/4082d290eea2f70caa82120ff3bc4fbdccbf206c

R=reed@google.com, mtklein@chromium.org
TBR=mtklein@chromium.org, reed@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Author: mtklein@google.com

Review URL: https://codereview.chromium.org/496173002
1 file changed