Revert of Move Dashing filterPath to a dashing utils file (https://codereview.chromiu...

Revert of Move Dashing filterPath to a dashing utils file (https://codereview.chromium.org/314623004/)

Reason for revert:
Need to create utils.gypi file and update chrome

Original issue's description:
> Move Dashing filterPath to a dashing utils file
>
> From inside GrContext, we have a need to create an SkPath an original path and
> some dashing info. We do not have access to the original path effect so we need
> a way to make the FilterPath function accessible outside of the effect. So I moved
> the core filterPath code (and all need helper functions) out of SkDashPathEffect
> and created a SkDashPath in utils to store these helper functions.
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/576dcdc793a762ec63fbecdbfd5768066b548fe5

R=bsalomon@google.com, reed@google.com, rmistry@google.com
TBR=bsalomon@google.com, reed@google.com, rmistry@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Author: egdaniel@google.com

Review URL: https://codereview.chromium.org/317663003