Add benchmarkstream to visualbench

tools/VisualBench/VisualSKPBench.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 VisualSKPBench_DEFINED
+#define VisualSKPBench_DEFINED
+
+#include "Benchmark.h"
+#include "SkCanvas.h"
+#include "SkPicture.h"
+
+/**
+ * Runs an SkPicture as a benchmark by repeatedly drawing it
+ */
+class VisualSKPBench : public Benchmark {
+public:
+    VisualSKPBench(const char* name, const SkPicture*);
+
+protected:
+    const char* onGetName() override;
+    const char* onGetUniqueName() override;
+    bool isSuitableFor(Backend backend) override;
+    void onDraw(const int loops, SkCanvas* canvas) override;
+
+private:
+    SkAutoTUnref<const SkPicture> fPic;
+    SkString fName;
+    SkString fUniqueName;
+
+    typedef Benchmark INHERITED;
+};
+
+#endif