Implement stroking a path with nv_path_rendering

src/gpu/GrDrawTarget.h

Index: src/gpu/GrDrawTarget.h
diff --git a/src/gpu/GrDrawTarget.h b/src/gpu/GrDrawTarget.h
index 93f776c74f601054bd227517a09e4af48a4d853b..58cbe61aba04a7191a3a2f13b316f2532937ce97 100644
--- a/src/gpu/GrDrawTarget.h
+++ b/src/gpu/GrDrawTarget.h
@@ -328,10 +328,10 @@ public:
     void stencilPath(const GrPath*, const SkStrokeRec& stroke, SkPath::FillType fill);
 
     /**
-     * Fills a path. Fill must not be a hairline. It will respect the HW
+     * Draws a path. Fill must not be a hairline. It will respect the HW
      * antialias flag on the draw state (if possible in the 3D API).
      */
-    void fillPath(const GrPath*, const SkStrokeRec& stroke, SkPath::FillType fill);
+    void drawPath(const GrPath*, const SkStrokeRec& stroke, SkPath::FillType fill);
 
     /**
      * Helper function for drawing rects. It performs a geometry src push and pop
@@ -839,7 +839,7 @@ private:
                             const SkRect* localRect,
                             const SkMatrix* localMatrix);
     virtual void onStencilPath(const GrPath*, const SkStrokeRec& stroke, SkPath::FillType fill) = 0;
-    virtual void onFillPath(const GrPath*, const SkStrokeRec& stroke, SkPath::FillType fill) = 0;
+    virtual void onDrawPath(const GrPath*, const SkStrokeRec& stroke, SkPath::FillType fill) = 0;
 
     // helpers for reserving vertex and index space.
     bool reserveVertexSpace(size_t vertexSize,