Revert of extract some common code from PictureRenderer

Revert of extract some common code from PictureRenderer (https://codereview.chromium.org/273703006/)

Reason for revert:
breaking the android debug builds.  It seems to be the result of android using shared libs and not lumping everything into one big static lib or executable. So we have more than one copy of SkString which is the root of the issue.

Original issue's description:
> extract some common code from PictureRenderer
> 
> Committed: http://code.google.com/p/skia/source/detail?r=14638

TBR=borenet@google.com,epoger@google.com
NOTREECHECKS=true
NOTRY=true

Committed: http://code.google.com/p/skia/source/detail?r=14649

[djsollen, 2014-05-08 16:22:35]

Created Revert of extract some common code from PictureRenderer

[commit-bot: I haz the power, 2014-05-08 16:23:42]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/djsollen@google.com/274463004/1

[commit-bot: I haz the power, 2014-05-08 16:24:01]

Change committed as 14649

[epoger, 2014-05-08 19:00:54]

lgtm