Revert 116191 - Input latency performance test that uses tracing.

chrome/test/perf/browser_perf_test.h

-// 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 CHROME_TEST_PERF_BROWSER_PERF_TEST_H_
-#define CHROME_TEST_PERF_BROWSER_PERF_TEST_H_
-#pragma once
-
-#include "chrome/test/base/in_process_browser_test.h"
-
-class CommandLine;
-
-class BrowserPerfTest : public InProcessBrowserTest {
- public:
-  BrowserPerfTest();
-  virtual ~BrowserPerfTest();
-
-  // Set up common browser perf test flags. Typically call down to this if
-  // overridden.
-  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE;
-
-  // Prints IO performance data for use by perf graphs.
-  void PrintIOPerfInfo(const std::string& test_name);
-
-  // Prints memory usage data for use by perf graphs.
-  void PrintMemoryUsageInfo(const std::string& test_name);
-};
-
-#endif  // CHROME_TEST_PERF_BROWSER_PERF_TEST_H_