remove prototype pathops code

experimental/Intersection/ShapeOps.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.
- */
-#include "SkPath.h"
-
-// region-inspired approach
-void contourBounds(const SkPath& path, SkTDArray<SkRect>& boundsArray);
-void simplify(const SkPath& path, bool asFill, SkPath& simple);
-
-// contour outer edge walking approach
-#ifndef DEFINE_SHAPE_OP
-// FIXME: namespace testing doesn't allow global enums like this
-#define DEFINE_SHAPE_OP
-enum ShapeOp {
-    kDifference_Op,
-    kIntersect_Op,
-    kUnion_Op,
-    kXor_Op,
-    kShapeOp_Count
-};
-
-enum ShapeOpMask {
-    kWinding_Mask = -1,
-    kNo_Mask = 0,
-    kEvenOdd_Mask = 1
-};
-#endif
-
-void operate(const SkPath& one, const SkPath& two, ShapeOp op, SkPath& result);
-void simplifyx(const SkPath& path, SkPath& simple);
-
-// FIXME: remove this section once debugging is complete
-extern const bool gRunTestsInOneThread;
-#ifdef SK_DEBUG
-extern int gDebugMaxWindSum;
-extern int gDebugMaxWindValue;
-#endif