Implement stroking a path with nv_path_rendering

src/gpu/GrPath.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 GrPath_DEFINED
 #define GrPath_DEFINED
 
 #include "GrResource.h"
 #include "SkRect.h"
+#include "SkStrokeRec.h"
 
 class GrPath : public GrResource {
 public:
     SK_DECLARE_INST_COUNT(GrPath);
 
-    GrPath(GrGpu* gpu, bool isWrapped) : INHERITED(gpu, isWrapped) {}
+    GrPath(GrGpu* gpu, bool isWrapped, const SkStrokeRec& stroke)
+        : INHERITED(gpu, isWrapped),
+          fStroke(stroke) {
+    }
 
     const SkRect& getBounds() const { return fBounds; }
 
+    const SkStrokeRec& getStroke() const { return fStroke; }
+
 protected:
     SkRect fBounds;
+    SkStrokeRec fStroke;
 
 private:
     typedef GrResource INHERITED;
 };
 
 #endif