Add dump() to SkClipStack to help with debugging.

include/core/SkRegion.h

 
 /*
  * Copyright 2005 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkRegion_DEFINED
@@ skipping 226 matching lines @@
     /**
      *  The logical operations that can be performed when combining two regions.
      */
     enum Op {
         kDifference_Op, //!< subtract the op region from the first region
         kIntersect_Op,  //!< intersect the two regions
         kUnion_Op,      //!< union (inclusive-or) the two regions
         kXOR_Op,        //!< exclusive-or the two regions
         /** subtract the first region from the op region */
         kReverseDifference_Op,
-        kReplace_Op     //!< replace the dst region with the op region
+        kReplace_Op,    //!< replace the dst region with the op region
+
+        kLastOp = kReplace_Op
     };
 
+    static const int kOpCnt = kLastOp + 1;
+
     /**
      *  Set this region to the result of applying the Op to this region and the
      *  specified rectangle: this = (this op rect).
      *  Return true if the resulting region is non-empty.
      */
     bool op(const SkIRect& rect, Op op) { return this->op(*this, rect, op); }
 
     /**
      *  Set this region to the result of applying the Op to this region and the
      *  specified rectangle: this = (this op rect).
@@ skipping 180 matching lines @@
     static bool Oper(const SkRegion&, const SkRegion&, SkRegion::Op, SkRegion*);
 
     friend struct RunHead;
     friend class Iterator;
     friend class Spanerator;
     friend class SkRgnBuilder;
     friend class SkFlatRegion;
 };
 
 #endif