Revert of remove unused (by clients) SkPathUtils

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

[jcgregorio, 2015-04-16 16:47:14]

Created Revert of remove unused (by clients) SkPathUtils

[commit-bot: I haz the power, 2015-04-16 16:47:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1060703003/1

[commit-bot: I haz the power, 2015-04-16 16:47:40]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/bdb0bf5f8858043878d8a4fa8130c6c87bef3fd4

[reed2, 2015-04-17 03:10:31]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1091963002/ by reed@chromium.org.

The reason for reverting is: fix (removal from gypi/gn files) has landed in
chrome..