Add direct bezier cubic support for GPU shaders

src/gpu/GrAAHairLinePathRenderer.h

Index: src/gpu/GrAAHairLinePathRenderer.h
diff --git a/src/gpu/GrAAHairLinePathRenderer.h b/src/gpu/GrAAHairLinePathRenderer.h
index 064fc18c92aa8ec24ed65f20c320d249ffb87a41..e786b150736cf67e8464a6d1b7e0393b28c4e892 100644
--- a/src/gpu/GrAAHairLinePathRenderer.h
+++ b/src/gpu/GrAAHairLinePathRenderer.h
@@ -31,18 +31,21 @@ protected:
 private:
     GrAAHairLinePathRenderer(const GrContext* context,
                              const GrIndexBuffer* fLinesIndexBuffer,
-                             const GrIndexBuffer* fQuadsIndexBuffer);
+                             const GrIndexBuffer* fQuadsIndexBuffer,
+                             const GrIndexBuffer* fCubicsIndexBuffer);
 
     bool createGeom(const SkPath& path,
                     GrDrawTarget* target,
                     int* lineCnt,
                     int* quadCnt,
                     int* conicCnt,
+                    int* cubicCnt,
                     GrDrawTarget::AutoReleaseGeometry* arg,
                     SkRect* devBounds   );
 
     const GrIndexBuffer*        fLinesIndexBuffer;
     const GrIndexBuffer*        fQuadsIndexBuffer;
+    const GrIndexBuffer*        fCubicsIndexBuffer;
 
     typedef GrPathRenderer INHERITED;
 };