Batched implementation of drawLattice() for GPU

src/gpu/batches/GrNinePatch.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrNinePatch_DEFINED
 #define GrNinePatch_DEFINED
 
 #include "GrColor.h"
+#include "SkCanvas.h"
 
 class GrDrawBatch;
 class SkBitmap;
+class SkLatticeIter;
 class SkMatrix;
 struct SkIRect;
 struct SkRect;
 
 namespace GrNinePatch {
 GrDrawBatch* CreateNonAA(GrColor color, const SkMatrix& viewMatrix, int imageWidth, int imageHeight,
-                         const SkIRect& center, const SkRect& dst);
+                         std::unique_ptr<SkLatticeIter> iter, const SkRect& dst);
 };
 
 #endif