Add skeleton json support to visualbench

tools/VisualBench/VisualBench.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 VisualBench_DEFINED
 #define VisualBench_DEFINED
 
 #include "SkWindow.h"
 
+#include "ResultsWriter.h"
 #include "SkPicture.h"
 #include "SkString.h"
 #include "SkSurface.h"
 #include "Timer.h"
 #include "VisualBenchmarkStream.h"
 #include "gl/SkGLContext.h"
 
 class GrContext;
 struct GrGLInterface;
 class GrRenderTarget;
@@ skipping 75 matching lines @@
     State fState;
     SkAutoTDelete<VisualBenchmarkStream> fBenchmarkStream;
     SkAutoTUnref<Benchmark> fBenchmark;
 
     // support framework
     SkAutoTUnref<SkSurface> fSurface;
     SkAutoTUnref<GrContext> fContext;
     SkAutoTUnref<GrRenderTarget> fRenderTarget;
     AttachmentInfo fAttachmentInfo;
     SkAutoTUnref<const GrGLInterface> fInterface;
+    SkAutoTDelete<ResultsWriter> fResults;
 
     typedef SkOSWindow INHERITED;
 };
 
 #endif