Use vertex attributes for dash effect in gpu

include/core/SkStrokeRec.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 SkStrokeRec_DEFINED
 #define SkStrokeRec_DEFINED
 
 #include "SkPaint.h"
 
 class SkPath;
 
 class SkStrokeRec {
 public:
     enum InitStyle {
         kHairline_InitStyle,
         kFill_InitStyle
     };
     SkStrokeRec(InitStyle style);
 
     SkStrokeRec(const SkStrokeRec&);
+    SkStrokeRec(const SkPaint&, SkPaint::Style);
     explicit SkStrokeRec(const SkPaint&);
 
     enum Style {
         kHairline_Style,
         kFill_Style,
         kStroke_Style,
         kStrokeAndFill_Style
     };
 
     Style getStyle() const;
@@ skipping 49 matching lines @@
 
     bool operator==(const SkStrokeRec& other) const {
             return fWidth == other.fWidth &&
                    fMiterLimit == other.fMiterLimit &&
                    fCap == other.fCap &&
                    fJoin == other.fJoin &&
                    fStrokeAndFill == other.fStrokeAndFill;
     }
 
 private:
+    void init(const SkPaint& paint, SkPaint::Style style);
+
+
     SkScalar        fWidth;
     SkScalar        fMiterLimit;
     SkPaint::Cap    fCap;
     SkPaint::Join   fJoin;
     bool            fStrokeAndFill;
 };
 
 #endif