Revert 116191 - Input latency performance test that uses tracing.

chrome/test/perf/browser_perf_test.cc

-// 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.
-
-#include "chrome/test/perf/browser_perf_test.h"
-
-#include "base/command_line.h"
-#include "base/process_util.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/test/base/chrome_process_util.h"
-#include "chrome/test/perf/perf_test.h"
-
-BrowserPerfTest::BrowserPerfTest() {
-}
-
-BrowserPerfTest::~BrowserPerfTest() {
-}
-
-void BrowserPerfTest::SetUpCommandLine(CommandLine* command_line) {
-  // Reduce performance test variance by disabling background networking.
-  command_line->AppendSwitch(switches::kDisableBackgroundNetworking);
-}
-
-void BrowserPerfTest::PrintIOPerfInfo(const std::string& test_name) {
-  base::ProcessId browser_pid = base::GetCurrentProcId();
-  ChromeProcessList chrome_processes(GetRunningChromeProcesses(browser_pid));
-  perf_test::PrintIOPerfInfo(test_name, chrome_processes, browser_pid);
-}
-
-void BrowserPerfTest::PrintMemoryUsageInfo(const std::string& test_name) {
-  base::ProcessId browser_pid = base::GetCurrentProcId();
-  ChromeProcessList chrome_processes(GetRunningChromeProcesses(browser_pid));
-  perf_test::PrintMemoryUsageInfo(test_name, chrome_processes, browser_pid);
-}