Restore call to instantiate NotificationUIManager to fix perf timers.

chrome/browser/chrome_browser_main.cc

 // 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.
 
 #include "chrome/browser/chrome_browser_main.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 1842 matching lines @@
       BrowserThread::FILE, FROM_HERE,
       base::Bind(&GpuBlacklistUpdater::SetupOnFileThread));
 
   // Start watching all browser threads for responsiveness.
   ThreadWatcherList::StartWatchingAll(parsed_command_line());
 
 #if !defined(DISABLE_NACL)
   NaClProcessHost::EarlyStartup();
 #endif
 
+  // Instantiate the notification UI manager, as this triggers a perf timer
+  // used to measure startup time. TODO(stevenjb): Figure out what is actually
+  // triggering the timer and call that explicitly in the approprate place.
+  // http://crbug.com/105065.
+  g_browser_process->notification_ui_manager();
+
   if (parameters().ui_task) {
     // We are in test mode. Run one task and enter the main message loop.
 #if defined(OS_MACOSX)
     if (parameters().autorelease_pool)
       parameters().autorelease_pool->Recycle();
 #endif
     parameters().ui_task->Run();
     delete parameters().ui_task;
     run_message_loop_ = false;
   } else {
@@ skipping 217 matching lines @@
   if (env->GetVar(chrome::kPreReadEnvironmentVariable, &pre_read) &&
       (pre_read == "0" || pre_read == "1")) {
     std::string uma_name(name);
     uma_name += "_PreRead";
     uma_name += pre_read == "1" ? "Enabled" : "Disabled";
     AddPreReadHistogramTime(uma_name.c_str(), time);
   }
 #endif
 #endif
 }