Move GrRectBatch to GrBWFillRectBatch and make internal

src/gpu/batches/GrBWFillRectBatch.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 GrAAFillRectBatch_DEFINED
-#define GrAAFillRectBatch_DEFINED
+#ifndef GrBWFillRectBatch_DEFINED
+#define GrBWFillRectBatch_DEFINED
 
 #include "GrColor.h"
 
 class GrBatch;
 class SkMatrix;
 struct SkRect;
 
-namespace GrAAFillRectBatch {
+namespace GrBWFillRectBatch {
 GrBatch* Create(GrColor color,
                 const SkMatrix& viewMatrix,
                 const SkRect& rect,
-                const SkRect& devRect);
-
-GrBatch* Create(GrColor color,
-                const SkMatrix& viewMatrix,
-                const SkMatrix& localMatrix,
-                const SkRect& rect,
-                const SkRect& devRect);
+                const SkRect* localRect,
+                const SkMatrix* localMatrix);
 };
 
 #endif