Added rendering benchmark javascript hook

content/renderer/rendering_benchmark_results.h

Index: content/renderer/rendering_benchmark_results.h
diff --git a/content/renderer/rendering_benchmark_results.h b/content/renderer/rendering_benchmark_results.h
new file mode 100644
index 0000000000000000000000000000000000000000..34262588893e948973fa52c0f6791f59952e9eaf
--- /dev/null
+++ b/content/renderer/rendering_benchmark_results.h
@@ -0,0 +1,25 @@
+// 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_RENDERING_BENCHMARK_RESULTS_H_
+#define CONTENT_RENDERER_RENDERING_BENCHMARK_RESULTS_H_
+
+#include <string>
+
+#include "content/common/content_export.h"
+
+namespace content {
+
+class RenderingBenchmarkResults {
+ public:
+  virtual ~RenderingBenchmarkResults() { }
+
+  virtual void AddResult(const std::string& benchmark_name,
+                         const std::string& result_name,
+                         const std::string& result_unit,
+                         double time) = 0;
+};
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_RENDERING_BENCHMARK_RESULTS_H_