Added rendering benchmark javascript hook

content/renderer/all_rendering_benchmarks.h

Index: content/renderer/all_rendering_benchmarks.h
diff --git a/content/renderer/all_rendering_benchmarks.h b/content/renderer/all_rendering_benchmarks.h
new file mode 100644
index 0000000000000000000000000000000000000000..b19dca3ad5c3d5838193f8ae92ae4f1addc7c643
--- /dev/null
+++ b/content/renderer/all_rendering_benchmarks.h
@@ -0,0 +1,19 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CONTENT_RENDERER_ALL_RENDERING_BENCHMARKS_H_
+#define CONTENT_RENDERER_ALL_RENDERING_BENCHMARKS_H_
+
+#include <vector>
+
+#include "base/memory/scoped_vector.h"
+
+namespace content {
+class RenderingBenchmark;
+
+ScopedVector<RenderingBenchmark> AllRenderingBenchmarks();
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_ALL_RENDERING_BENCHMARKS_H_