DM: don't change byte order when unpremultiplying to compare to PNGs.

DM: don't change byte order when unpremultiplying to compare to PNGs.

We've already decoded the PNGs themselves into unpremultiplied bitmaps with native byte order.  SkColor is just not the right choice unless you get lucky.

dm -w /tmp/dm && dm -r /tmp/dm still works on Linux, and it's much closer to working on Mac:

0 tasks left, 2 failed
Failures:
  matrixconvolution_gpu
  colormatrix_gpu

BUG=skia:

Committed: http://code.google.com/p/skia/source/detail?r=13101

[reed1, 2014-01-15 20:27:00]

lgtm

wonder if we should offer this as a help in the class, as we do for converting
to SkColor (not in this CL per-se)

[mtklein, 2014-01-15 20:27:57]

On 2014/01/15 20:27:00, reed1 wrote:
> lgtm
> 
> wonder if we should offer this as a help in the class, as we do for converting
> to SkColor (not in this CL per-se)

Not a bad idea.  I did steal this from elsewhere in our codebase.

[commit-bot: I haz the power, 2014-01-15 20:35:02]

CQ is trying da patch. Follow status at
https://skia-tree-status.appspot.com/cq/mtklein@google.com/139943002/100001

[commit-bot: I haz the power, 2014-01-15 21:28:27]

Change committed as 13101