add support for capped hairlines

include/core/SkPath.h

 /*
  * Copyright 2006 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 SkPath_DEFINED
 #define SkPath_DEFINED
 
@@ skipping 938 matching lines @@
             segments have been visited, return kDone_Verb.
 
             @param  pts The points representing the current verb and/or segment
                         This must not be NULL.
             @return The verb for the current segment
         */
         Verb next(SkPoint pts[4]) {
             return (Verb) fRawIter.next(pts);
         }
 
+        /** Return what the next verb will be, but do not visit the next segment.
+
+            @return The verb for the next segment
+        */
+        Verb peek() const {
+            return (Verb) fRawIter.peek();
+        }
+
         SkScalar conicWeight() const {
             return fRawIter.conicWeight();
         }
 
     private:
         SkPathRef::Iter fRawIter;
         friend class SkPath;
     };
 
     /**
@@ skipping 118 matching lines @@
 
     friend class SkAutoPathBoundsUpdate;
     friend class SkAutoDisableOvalCheck;
     friend class SkAutoDisableDirectionCheck;
     friend class SkBench_AddPathTest; // perf test reversePathTo
     friend class PathTest_Private; // unit test reversePathTo
     friend class ForceIsRRect_Private; // unit test isRRect
 };
 
 #endif