Consolidate RecordBrowserStartupTime() into one location

chrome/browser/chrome_browser_main_mac.mm

 // 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/browser/chrome_browser_main_mac.h"
 
 #import <Cocoa/Cocoa.h>
-#include <sys/sysctl.h>
-#include <sys/time.h>
 
 #include "base/command_line.h"
 #include "base/debug/debugger.h"
 #include "base/file_path.h"
 #include "base/mac/bundle_locations.h"
 #include "base/mac/mac_util.h"
 #include "base/memory/scoped_nsobject.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "chrome/app/breakpad_mac.h"
 #import "chrome/browser/app_controller_mac.h"
 #import "chrome/browser/chrome_browser_application_mac.h"
 #include "chrome/browser/mac/install_from_dmg.h"
 #include "chrome/browser/mac/keychain_reauthorize.h"
 #import "chrome/browser/mac/keystone_glue.h"
 #include "chrome/browser/metrics/metrics_service.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
@@ skipping 23 matching lines @@
     @"KeychainReauthorizeAtUpdateMay2012";
 const int kKeychainReauthorizeAtUpdateMaxTries = 3;
 
 }  // namespace
 
 void RecordBreakpadStatusUMA(MetricsService* metrics) {
   metrics->RecordBreakpadRegistration(IsCrashReporterEnabled());
   metrics->RecordBreakpadHasDebugger(base::debug::BeingDebugged());
 }
 
-void RecordBrowserStartupTime() {
-  int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, getpid() };
-  size_t len = 0;
-  if (sysctl(mib, arraysize(mib), NULL, &len, NULL, 0) < 0)
-    return;
-
-  scoped_ptr_malloc<struct kinfo_proc>
-      proc(static_cast<struct kinfo_proc*>(malloc(len)));
-  if (sysctl(mib, arraysize(mib), proc.get(), &len, NULL, 0) < 0)
-    return;
-  base::Time process_creation_time =
-      base::Time::FromTimeVal(proc->kp_proc.p_un.__p_starttime);
-
-  RecordPreReadExperimentTime("Startup.BrowserMessageLoopStartTime",
-      base::Time::Now() - process_creation_time);
-}
-
 void WarnAboutMinimumSystemRequirements() {
   // Nothing to check for on Mac right now.
 }
 
 // From browser_main_win.h, stubs until we figure out the right thing...
 
 int DoUninstallTasks(bool chrome_still_running) {
   return content::RESULT_CODE_NORMAL_EXIT;
 }
 
@@ skipping 104 matching lines @@
   // Prevent Cocoa from turning command-line arguments into
   // |-application:openFiles:|, since we already handle them directly.
   [[NSUserDefaults standardUserDefaults]
       setObject:@"NO" forKey:@"NSTreatUnknownArgumentsAsOpen"];
 }
 
 void ChromeBrowserMainPartsMac::DidEndMainMessageLoop() {
   AppController* appController = [NSApp delegate];
   [appController didEndMainMessageLoop];
 }