Split GrDrawBatch and GrVertexBatch into their own files

src/gpu/batches/GrAAStrokeRectBatch.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 GrAAStrokeRectBatch_DEFINED
 #define GrAAStrokeRectBatch_DEFINED
 
-#include "GrBatch.h"
 #include "GrColor.h"
 #include "GrTypes.h"
+#include "GrVertexBatch.h"
 #include "SkMatrix.h"
 #include "SkRect.h"
 
 class GrAAStrokeRectBatch : public GrVertexBatch {
 public:
     // TODO support AA rotated stroke rects by copying around view matrices
     struct Geometry {
         GrColor fColor;
         SkRect fDevOutside;
         SkRect fDevOutsideAssist;
@@ skipping 77 matching lines @@
         bool fMiterStroke;
         bool fCanTweakAlphaForCoverage;
     };
 
     BatchTracker fBatch;
     SkSTArray<1, Geometry, true> fGeoData;
 };
 
 
 #endif