Revert of Revert of Revert of Force DM rebuild.

Revert of Revert of Revert of Force DM rebuild. (https://codereview.chromium.org/402663003/)

Reason for revert:
we have to go deeper

Original issue's description:
> Revert of Revert of Force DM rebuild. (https://codereview.chromium.org/399123002/)
> 
> Reason for revert:
> jkl;
> 
> Original issue's description:
> > Revert of Force DM rebuild. (https://codereview.chromium.org/400723002/)
> > 
> > Reason for revert:
> > asdf
> > 
> > Original issue's description:
> > > Force DM rebuild.
> > > 
> > > BUG=skia:
> > > 
> > > Committed: https://skia.googlesource.com/skia/+/8a10de1
> > 
> > TBR=mtklein@chromium.org
> > NOTREECHECKS=true
> > NOTRY=true
> > BUG=skia:
> > 
> > Committed: https://skia.googlesource.com/skia/+/f42e08c12533f2a165bc08451f5ab5dd1363618b
> 
> TBR=mtklein@chromium.org
> NOTREECHECKS=true
> NOTRY=true
> BUG=skia:
> 
> Committed: https://skia.googlesource.com/skia/+/41f30cd87ece55971b17e4a59873cf31100ee1a0

TBR=mtklein@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Committed: https://skia.googlesource.com/skia/+/3125e02062b9d42df706208d3465834673748c34

[mtklein, 2014-07-17 17:01:56]

Created Revert of Revert of Revert of Force DM rebuild.

[commit-bot: I haz the power, 2014-07-17 17:02:25]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/mtklein@google.com/397293004/1

[commit-bot: I haz the power, 2014-07-17 17:02:35]

Change committed as 3125e02062b9d42df706208d3465834673748c34