Revert of path ops: fix conic weight and partial coincidence

Revert of path ops: fix conic weight and partial coincidence (patchset #5 id:80001 of https://codereview.chromium.org/1413763002/ )

Reason for revert:
path ops change breaks svg clipping layout tests -- conic is now more accurate, changing edge of circle in clip

These need to be rebaselined

svg/clip-path/clip-path-child-clipped.svg
svg/clip-path/clip-path-nonzero.svg
svg/clip-path/clip-path-evenodd-nonzero.svg
svg/clip-path/clip-path-nonzero-evenodd.svg

Original issue's description:
> The remaining 1m skp bugs are asserts that can be harmlessly
> suppressed and bugs around conics.
> 
> The conic calculation for a subdivided w was just wrong.
> 
> Also added debugging to template intersection to initialize
> reused structures and dump additional data.
> 
> TBR=reed@google.com
> 
> Committed: https://skia.googlesource.com/skia/+/ef33b1e739b23a1201100ff17a572da85b03d9af

TBR=
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://skia.googlesource.com/skia/+/f428df1be3e96d3f8970d0f7f415b862f7da5404

[caryclark, 2015-10-21 11:02:30]

Created Revert of path ops: fix conic weight and partial coincidence

[commit-bot: I haz the power, 2015-10-21 11:02:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1408923003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1408923003/1

[commit-bot: I haz the power, 2015-10-21 11:02:59]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/f428df1be3e96d3f8970d0f7f415b862f7da5404

[caryclark, 2015-10-22 14:23:36]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1407003016/ by caryclark@google.com.

The reason for reverting is: suppressions have landed in chrome.