convert pathops to use SkSTArray where possible.

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"
 #include "SkPath.h"
 #include "SkPathOpsCubic.h"
 
 class SkOpSegment;
 
 // 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
+
     bool operator<(const SkOpAngle& rh) const;
 
     bool calcSlop(double x, double y, double rx, double ry, bool* result) const;
 
     double dx() const {
         return fTangent1.dx();
     }
 
     double dy() const {
         return fTangent1.dy();
@@ skipping 52 matching lines @@
     // minimum, mark it unorderable. It still can be sorted, which is good enough for find-top
     // but can't be ordered, and therefore can't be used to compute winding
     bool fUnorderable;
     mutable bool fUnsortable;  // this alone is editable by the less than operator
 #if DEBUG_ANGLE
     int fID;
 #endif
 };
 
 #endif