Add latency measurement system

webkit/compositor_bindings/web_latency_info_impl.h

Index: webkit/compositor_bindings/web_latency_info_impl.h
diff --git a/webkit/compositor_bindings/web_latency_info_impl.h b/webkit/compositor_bindings/web_latency_info_impl.h
new file mode 100644
index 0000000000000000000000000000000000000000..2ff21fbbec032776871351ca3f81948b0ef415e6
--- /dev/null
+++ b/webkit/compositor_bindings/web_latency_info_impl.h
@@ -0,0 +1,24 @@
+// Copyright 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 WEB_LATENCY_INFO_IMPL_H_
+#define WEB_LATENCY_INFO_IMPL_H_
+
+#include "base/time.h"
+#include "cc/latency_info.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebLatencyInfo.h"
+
+namespace WebKit {
+
+struct WebLatencyInfoImpl : public WebLatencyInfo {
+    cc::LatencyInfo latency_info;
+
+    WebLatencyInfoImpl()
+    {
+    }
+};
+
+}  // namespace WebKit
+
+#endif  // WEB_LATENCY_INFO_IMPL_H_