Revert of Use an image generator to back SkPictureShader tiles. (patchset #4 id:60001 of https://codereview.chromium.org/866773002/)
Reason for revert:
TSAN troubles.
Original issue's description:
> Use an image generator to back SkPictureShader tiles.
>
> To avoid lifetime issues for tiles backed by discardable memory, use an
> image generator to re-generate them on the fly.
>
> With this CL, we are now caching bitmap shaders wrapping discardable
> pixel ref bitmaps backed by picture image generators.
>
> (the CL also includes some minor/unrelated SkPictureShader cleanup)
>
> BUG=skia:3220
> R=reed@google.com,halcanary@google.com
>
> Committed: https://skia.googlesource.com/skia/+/4739955e98ba86900a5bbac0e3661601427a54d4
TBR=reed@google.com,halcanary@google.com,mtklein@google.com,reed@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:3220
Review URL: https://codereview.chromium.org/956143002
2 files changed