fix builder winding again

Record the nesting level when finding the edge winding contribution
so that inner edges can be reversed as needed.

R=fmalita@chromium.org
BUG=skia:3838

Review URL: https://codereview.chromium.org/1140383002

1 files changed, 1 insertions, 0 deletions

diff --git a/src/pathops/SkPathOpsWinding.cpp b/src/pathops/SkPathOpsWinding.cpp
index 4a7b1bc3eb..03efdacd29 100644
--- a/src/pathops/SkPathOpsWinding.cpp
+++ b/src/pathops/SkPathOpsWinding.cpp
@@ -353,6 +353,7 @@ bool SkOpSpan::sortableTop(SkOpContour* contourHead) {
             SkTSwap(wind, oppWind);
         }
         last = &hit->fPt;
+        this->globalState()->bumpNested();
     }
     return true;
 }