Revert of Revert of remove unused (by clients) SkPathUtils

Revert of Revert of remove unused (by clients) SkPathUtils (patchset #1 id:1 of https://codereview.chromium.org/1060703003/)

Reason for revert:
fix (removal from gypi/gn files) has landed in chrome.

Original issue's description:
> Revert of remove unused (by clients) SkPathUtils (patchset #1 id:1 of https://codereview.chromium.org/1088383003/)
> 
> Reason for revert:
> This change is causing the DEPS roll to fail:
> 
> 
> http://build.chromium.org/p/tryserver.chromium.linux/builders/android_chromium_gn_compile_rel/builds/78771/steps/gn/logs/stdio
> 
> Original issue's description:
> > remove unused (by clients) SkPathUtils
> > 
> > BUG=skia:
> > 
> > Committed: https://skia.googlesource.com/skia/+/aab35d91b8b80acd1902594bbf542083fdfa4bb7
> 
> TBR=scroggo@google.com,reed@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=skia:
> 
> Committed: https://skia.googlesource.com/skia/+/bdb0bf5f8858043878d8a4fa8130c6c87bef3fd4

TBR=scroggo@google.com,jcgregorio@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Committed: https://skia.googlesource.com/skia/+/ca1a22ee534f0fcabed7fa06cbf3ea5068b489da

[reed2, 2015-04-17 03:10:32]

Created Revert of Revert of remove unused (by clients) SkPathUtils

[commit-bot: I haz the power, 2015-04-17 03:10:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1091963002/1

[commit-bot: I haz the power, 2015-04-17 03:10:59]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/ca1a22ee534f0fcabed7fa06cbf3ea5068b489da