Implement stroking a path with nv_path_rendering

src/gpu/GrGpu.h

Index: src/gpu/GrGpu.h
diff --git a/src/gpu/GrGpu.h b/src/gpu/GrGpu.h
index 71d77c841f7444cd36422665f4a4327de21deede..3e551dc03d41d99fc98255b6b0804c265b335a4d 100644
--- a/src/gpu/GrGpu.h
+++ b/src/gpu/GrGpu.h
@@ -124,7 +124,7 @@ public:
      * Creates a path object that can be stenciled using stencilPath(). It is
      * only legal to call this if the caps report support for path stenciling.
      */
-    GrPath* createPath(const SkPath& path);
+    GrPath* createPath(const SkPath& path, const SkStrokeRec& stroke);
 
     /**
      * Returns an index buffer that can be used to render quads.
@@ -348,7 +348,7 @@ protected:
         kDrawLines_DrawType,
         kDrawTriangles_DrawType,
         kStencilPath_DrawType,
-        kFillPath_DrawType,
+        kDrawPath_DrawType,
     };
 
     DrawType PrimTypeToDrawType(GrPrimitiveType type) {
@@ -442,7 +442,7 @@ private:
     virtual GrRenderTarget* onWrapBackendRenderTarget(const GrBackendRenderTargetDesc&) = 0;
     virtual GrVertexBuffer* onCreateVertexBuffer(uint32_t size, bool dynamic) = 0;
     virtual GrIndexBuffer* onCreateIndexBuffer(uint32_t size, bool dynamic) = 0;
-    virtual GrPath* onCreatePath(const SkPath& path) = 0;
+    virtual GrPath* onCreatePath(const SkPath& path, const SkStrokeRec& stroke) = 0;
 
     // overridden by backend-specific derived class to perform the clear and
     // clearRect. NULL rect means clear whole target.
@@ -453,7 +453,7 @@ private:
 
     // overridden by backend-specific derived class to perform the path stenciling.
     virtual void onGpuStencilPath(const GrPath*, SkPath::FillType) = 0;
-    virtual void onGpuFillPath(const GrPath*, SkPath::FillType) = 0;
+    virtual void onGpuDrawPath(const GrPath*, const SkStrokeRec& stroke, SkPath::FillType) = 0;
 
     // overridden by backend-specific derived class to perform flush
     virtual void onForceRenderTargetFlush() = 0;
@@ -499,7 +499,7 @@ private:
     virtual void onStencilPath(const GrPath* path, const SkStrokeRec& stroke,
                                SkPath::FillType) SK_OVERRIDE;
 
-    virtual void onFillPath(const GrPath* path, const SkStrokeRec& stroke,
+    virtual void onDrawPath(const GrPath* path, const SkStrokeRec& stroke,
                                SkPath::FillType) SK_OVERRIDE;
 
     // readies the pools to provide vertex/index data.