harden pathops for pathological test

src/pathops/SkOpAngle.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkOpAngle_DEFINED
 #define SkOpAngle_DEFINED
 
 #include "SkChunkAlloc.h"
@@ skipping 32 matching lines @@
     int loopCount() const;
     void markStops();
     bool merge(SkOpAngle* );
 
     SkOpAngle* next() const {
         return fNext;
     }
 
     SkOpAngle* previous() const;
 
+    int sectorEnd() const {
+        return fSectorEnd;
+    }
+
+    int sectorStart() const {
+        return fSectorStart;
+    }
+
     void set(const SkOpSegment* segment, int start, int end);
 
     void setLastMarked(SkOpSpan* marked) {
         fLastMarked = marked;
     }
 
     SkOpSegment* segment() const {
         return const_cast<SkOpSegment*>(fSegment);
     }
 
@@ skipping 97 matching lines @@
     void reset();
 private:
     void dump() const;  // utility to be called by user from debugger
     SkChunkAlloc* fAngles;
 #if DEBUG_ANGLE
     int fCount;
 #endif
 };
 
 #endif