remove unused fields from SkOpSegment

src/pathops/SkOpContour.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkOpContour_DEFINED
 #define SkOpContour_DEFINED
 
 #include "SkOpSegment.h"
@@ skipping 300 matching lines @@
         }
         SkASSERT(prev);
         prev->setNext(nullptr);
     }
 
     void reset() {
         fTail = nullptr;
         fNext = nullptr;
         fCount = 0;
         fDone = false;
-        fTopsFound = false;
         SkDEBUGCODE(fBounds.set(SK_ScalarMax, SK_ScalarMax, SK_ScalarMin, SK_ScalarMin));
         SkDEBUGCODE(fFirstSorted = -1);
         SkDEBUGCODE(fDebugIndent = 0);
     }
 
     void resetReverse() {
         SkOpContour* next = this;
         do {
             next->fCcw = -1;
             next->fReverse = false;
@@ skipping 77 matching lines @@
 private:
     SkOpGlobalState* fState;
     SkOpSegment fHead;
     SkOpSegment* fTail;
     SkOpContour* fNext;
     SkPathOpsBounds fBounds;
     int fCcw;
     int fCount;
     int fFirstSorted;
     bool fDone;  // set by find top segment
-    bool fTopsFound;
     bool fOperand;  // true for the second argument to a binary operator
     bool fReverse;  // true if contour should be reverse written to path (used only by fix winding)
     bool fXor;  // set if original path had even-odd fill
     bool fOppXor;  // set if opposite path had even-odd fill
     SkDEBUGCODE(int fID);
     SkDEBUGCODE(mutable int fDebugIndent);
 };
 
 class SkOpContourHead : public SkOpContour {
 };
 
 #endif