fix minor skp-found bugs

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 "SkLineParameters.h"
 
 class SkOpSegment;
 struct SkOpSpan;
 
 // sorting angles
 // given angles of {dx dy ddx ddy dddx dddy} sort them
 class SkOpAngle {
 public:
     enum { kStackBasedCount = 8 }; // FIXME: determine what this should be
     enum IncludeType {
         kUnaryWinding,
         kUnaryXor,
         kBinarySingle,
         kBinaryOpp,
     };
 
+
     int end() const {
         return fEnd;
     }
 
     const SkOpAngle* findFirst() const;
 
     bool inLoop() const {
         return !!fNext;
     }
 
     void insert(SkOpAngle* );
     bool isHorizontal() const;
     SkOpSpan* lastMarked() const;
+    bool loopContains(const SkOpAngle& ) const;
     int loopCount() const;
     void markStops();
     bool merge(SkOpAngle* );
 
     SkOpAngle* next() const {
         return fNext;
     }
 
     SkOpAngle* previous() const;
 
@@ skipping 47 matching lines @@
     bool checkCrossesZero() const;
     bool checkParallel(const SkOpAngle& ) const;
     bool computeSector();
     int convexHullOverlaps(const SkOpAngle& ) const;
     double distEndRatio(double dist) const;
     int findSector(SkPath::Verb verb, double x, double y) const;
     bool endsIntersect(const SkOpAngle& ) const;
     double midT() const;
     bool oppositePlanes(const SkOpAngle& rh) const;
     bool orderable(const SkOpAngle& rh) const;  // false == this < rh ; true == this > rh
+    bool overlap(const SkOpAngle& test) const;
     void setCurveHullSweep();
     void setSector();
     void setSpans();
     bool tangentsDiverge(const SkOpAngle& rh, double s0xt0) const;
 
     SkDCubic fCurvePart; // the curve from start to end
     double fSide;
     SkLineParameters fTangentHalf;  // used only to sort a pair of lines or line-like sections
     const SkOpSegment* fSegment;
     SkOpAngle* fNext;
@@ skipping 22 matching lines @@
     void debugValidateNext() const;  // in debug builds, verify that angle loop is uncorrupted
 #else
     void debugValidateNext() const {}
 #endif
     void dumpLoop() const;  // utility to be called by user from debugger
     void dumpPartials() const;  // utility to be called by user from debugger
     friend class PathOpsAngleTester;
 };
 
 #endif