Revert "Stop using color space xform canvas in picture image generator"

This reverts commit 031ca213e0921cf4d2467aa41d29c75d46092009.

Reason for revert: breaking angle surfacetest unit test

Original change's description:
> Stop using color space xform canvas in picture image generator
> 
> Direct rasterization should produce similar (or identical) results.
> See: https://chromium-review.googlesource.com/c/chromium/src/+/1273815
> 
> Bug: skia:
> Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
> Change-Id: I252ec5d5ecb19704f33c0f6cb65d12c2ec927c1d
> Reviewed-on: https://skia-review.googlesource.com/c/161140
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: Mike Klein <mtklein@google.com>

TBR=mtklein@google.com,brianosman@google.com

Change-Id: Ib5667f0d315c4f2877c1f0c38e9c62d37335d511
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Reviewed-on: https://skia-review.googlesource.com/c/161560
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
4 files changed