add a ClassID function to GrBatch

src/gpu/GrDrawTarget.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrDrawTarget_DEFINED
 #define GrDrawTarget_DEFINED
 
 #include "GrClip.h"
 #include "GrClipMaskManager.h"
 #include "GrContext.h"
 #include "GrPathProcessor.h"
 #include "GrPrimitiveProcessor.h"
 #include "GrIndexBuffer.h"
 #include "GrPathRendering.h"
 #include "GrPipelineBuilder.h"
 #include "GrPipeline.h"
 #include "GrVertexBuffer.h"
 #include "GrXferProcessor.h"
 
 #include "SkClipStack.h"
 #include "SkMatrix.h"
 #include "SkPath.h"
+#include "SkStringUtils.h"
 #include "SkStrokeRec.h"
 #include "SkTArray.h"
 #include "SkTLazy.h"
 #include "SkTypes.h"
 #include "SkXfermode.h"
 
 class GrBatch;
 class GrClip;
 class GrCaps;
 class GrPath;
@@ skipping 199 matching lines @@
     GrContext*                                  fContext;
     GrGpu*                                      fGpu;
     GrResourceProvider*                         fResourceProvider;
     bool                                        fFlushing;
     GrBatchToken                                fLastFlushToken;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif