Moving the contents of chrome://gpu Profiling to chrome://tracing.

chrome/browser/ui/webui/tracing_ui.h

+// Copyright (c) 2011 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 CHROME_BROWSER_UI_WEBUI_TRACING_UI_H_
+#define CHROME_BROWSER_UI_WEBUI_TRACING_UI_H_
+#pragma once
+
+#include "chrome/browser/ui/webui/chrome_web_ui.h"
+
+// The C++ back-end for the chrome://tracing webui page.
+class TracingUI : public ChromeWebUI {
+ public:
+  explicit TracingUI(TabContents* contents);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(TracingUI);
+};
+
+#endif  // CHROME_BROWSER_UI_WEBUI_TRACING_UI_H_