Revert of Sketch DM refactor.

Revert of Sketch DM refactor. (patchset #45 id:850001 of https://codereview.chromium.org/788243008/)

Reason for revert:
plenty of data

Original issue's description:
> Sketch DM refactor.
> 
> BUG=skia:3255
> 
> 
> I think this supports everything DM used to, but has completely refactored how
> it works to fit the design in the bug.
> 
> Configs like "tiles-gpu" are automatically wired up.
> 
> I wouldn't suggest looking at this as a diff.  There's just a bunch of deleted
> files, a few new files, and one new file that shares a name with a deleted file
> (DM.cpp).
> 
> NOTREECHECKS=true
> 
> Committed: https://skia.googlesource.com/skia/+/709d2c3e5062c5b57f91273bfc11a751f5b2bb88

TBR=bsalomon@google.com,mtklein@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=skia:3255
Committed: https://skia.googlesource.com/skia/+/114c3cd0543d77aa0ac08d8af436ac7f9d32714d

[mtklein, 2015-01-15 18:14:20]

Created Revert of Sketch DM refactor.

[commit-bot: I haz the power, 2015-01-15 18:14:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/853883004/1

[commit-bot: I haz the power, 2015-01-15 18:15:07]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/114c3cd0543d77aa0ac08d8af436ac7f9d32714d