Split GrDrawBatch and GrVertexBatch into their own files

src/gpu/batches/GrBWFillRectBatch.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrBWFillRectBatch.h"
 
-#include "GrBatch.h"
 #include "GrBatchTarget.h"
 #include "GrColor.h"
 #include "GrDefaultGeoProcFactory.h"
 #include "GrPrimitiveProcessor.h"
+#include "GrVertexBatch.h"
 
 class GrBatchTarget;
 class SkMatrix;
 struct SkRect;
 
 class BWFillRectBatch : public GrVertexBatch {
 public:
     struct Geometry {
         SkMatrix fViewMatrix;
         SkRect fRect;
@@ skipping 234 matching lines @@
 
     geometry.fHasLocalMatrix = random->nextBool();
     if (geometry.fHasLocalMatrix) {
         geometry.fLocalMatrix = GrTest::TestMatrix(random);
     }
 
     return BWFillRectBatch::Create(geometry);
 }
 
 #endif