Extract gpu line dashing to GrDashLinePathRenderer

include/gpu/GrPathRendererChain.h

Index: include/gpu/GrPathRendererChain.h
diff --git a/include/gpu/GrPathRendererChain.h b/include/gpu/GrPathRendererChain.h
index 9c4b976c9cf40c9864eeab946e6542a9edf15bca..9b703dacdd4310d5346be2f6e8ebd17de63d30fb 100644
--- a/include/gpu/GrPathRendererChain.h
+++ b/include/gpu/GrPathRendererChain.h
@@ -15,9 +15,9 @@ class GrContext;
 class GrDrawTarget;
 class GrPathRenderer;
 class GrPipelineBuilder;
+class GrStrokeInfo;
 class SkMatrix;
 class SkPath;
-class SkStrokeRec;
 
 /**
  * Keeps track of an ordered list of path renderers. When a path needs to be
@@ -61,7 +61,7 @@ public:
                                     const GrPipelineBuilder*,
                                     const SkMatrix& viewMatrix,
                                     const SkPath& path,
-                                    const SkStrokeRec& rec,
+                                    const GrStrokeInfo& stroke,
                                     DrawType drawType,
                                     StencilSupport* stencilSupport);