Revert "transform gradient colors without skcms"

This reverts commit b27a9cf2f4a8ddb624791a79cc6d2a9207783e0b.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> transform gradient colors without skcms
> 
> This use of skcms kind of sticks out as odd now.
> We can do all this using plain old SkConvertPixels.
> 
> Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
> Change-Id: Id416058717359a413fcae63d2ae5c91040440a87
> Reviewed-on: https://skia-review.googlesource.com/c/161583
> Auto-Submit: Mike Klein <mtklein@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>

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

Change-Id: Ic6f722fe07aabe67984ee2090c08076290a3cc67
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Reviewed-on: https://skia-review.googlesource.com/c/161563
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
1 file changed