Revert of remove SK_SUPPORT_LEGACY_PATHOP_ENUMS

Revert of remove SK_SUPPORT_LEGACY_PATHOP_ENUMS (patchset #1 id:1 of https://codereview.chromium.org/1200323005/)

Reason for revert:
Breaking the Android build.

Original issue's description:
> remove SK_SUPPORT_LEGACY_PATHOP_ENUMS
> 
> BUG=skia:
> TBR=
> 
> Committed: https://skia.googlesource.com/skia/+/8bcc7a00febd737f7e82513bd5e4a697526626de

TBR=reed@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Committed: https://skia.googlesource.com/skia/+/ba9a4aa8550c982c480d03cb6ba2cabaf6209b41

[scroggo, 2015-06-24 15:05:32]

Created Revert of remove SK_SUPPORT_LEGACY_PATHOP_ENUMS

[commit-bot: I haz the power, 2015-06-24 15:05:46]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1203983003/1

[commit-bot: I haz the power, 2015-06-24 15:05:57]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/ba9a4aa8550c982c480d03cb6ba2cabaf6209b41

[tomhudson, 2015-06-24 15:09:27]

Working on a framework CL to enable this.

[tomhudson, 2015-06-24 15:11:57]

This CL should perhaps also fix the strings in
src/utils/debugger/SkDebugCanvas.cpp?

[reed1, 2015-06-26 17:22:51]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1218523002/ by reed@google.com.

The reason for reverting is: fixes have landed in android.