Extract gpu line dashing to GrDashLinePathRenderer

src/gpu/GrTessellatingPathRenderer.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTessellatingPathRenderer_DEFINED
 #define GrTessellatingPathRenderer_DEFINED
 
 #include "GrPathRenderer.h"
 
 /**
  *  Subclass that renders the path by converting to screen-space trapezoids plus
  *   extra 1-pixel geometry for AA.
  */
 class SK_API GrTessellatingPathRenderer : public GrPathRenderer {
 public:
     GrTessellatingPathRenderer();
 
     bool canDrawPath(const GrDrawTarget*,
                      const GrPipelineBuilder*,
                      const SkMatrix&,
                      const SkPath&,
-                     const SkStrokeRec&,
+                     const GrStrokeInfo&,
                      bool antiAlias) const override;
 protected:
 
     StencilSupport onGetStencilSupport(const GrDrawTarget*,
                                        const GrPipelineBuilder*,
                                        const SkPath&,
-                                       const SkStrokeRec&) const override;
+                                       const GrStrokeInfo&) const override;
 
     bool onDrawPath(GrDrawTarget*,
                     GrPipelineBuilder*,
                     GrColor,
                     const SkMatrix& viewMatrix,
                     const SkPath&,
-                    const SkStrokeRec&,
+                    const GrStrokeInfo&,
                     bool antiAlias) override;
 
     typedef GrPathRenderer INHERITED;
 };
 
 #endif