Reland "Remove ancient support for kUnknown_SkColorType in SkBitmapDevice"

This reverts commit 63bc5891e49e64e632e95719c43fcacfaa64f6ea.

Reason for revert: Chrome test has been fixed.

Original change's description:
> Revert "Remove ancient support for kUnknown_SkColorType in SkBitmapDevice"
> 
> This reverts commit e3a5b1960dfb7380b116ed3e93d3a1c930139a09.
> 
> Reason for revert: possibly breaking chrome roll
> 
> Original change's description:
> > Remove ancient support for kUnknown_SkColorType in SkBitmapDevice
> > 
> > Bug: skia:
> > Change-Id: I7559544f46b49be5ac6b38add8d1b61c010d3d6f
> > Reviewed-on: https://skia-review.googlesource.com/c/162284
> > Reviewed-by: Mike Reed <reed@google.com>
> > Commit-Queue: Brian Osman <brianosman@google.com>
> 
> TBR=mtklein@google.com,brianosman@google.com,reed@google.com
> 
> Change-Id: I95d502f80fc3c336484b306b50c9b5fe16f26a82
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: skia:
> Reviewed-on: https://skia-review.googlesource.com/c/163040
> Reviewed-by: Greg Daniel <egdaniel@google.com>
> Commit-Queue: Greg Daniel <egdaniel@google.com>

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

Change-Id: I37aa32558cd75ddca8c3ba150e3b90d09033372b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/c/163127
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
1 file changed