Small cleanup for ChromeBrowserMain:

chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.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/browser/ui/aura/chrome_browser_main_extra_parts_aura.h"
 
 #include "chrome/browser/chrome_browser_main.h"
-#include "chrome/browser/toolkit_extra_parts.h"
 #include "chrome/browser/ui/aura/active_desktop_monitor.h"
 #include "chrome/browser/ui/host_desktop.h"
 #include "ui/aura/env.h"
 #include "ui/gfx/screen.h"
 #include "ui/views/widget/desktop_aura/desktop_screen.h"
 #include "ui/views/widget/native_widget_aura.h"
 
 #if defined(OS_LINUX)
 #include "chrome/browser/ui/libgtk2ui/gtk2_ui.h"
 #include "ui/linux_ui/linux_ui.h"
@@ skipping 47 matching lines @@
   ui::LinuxUI::SetInstance(BuildGtk2UI());
 #endif
 }
 
 void ChromeBrowserMainExtraPartsAura::PostMainMessageLoopRun() {
   active_desktop_monitor_.reset();
 
   // aura::Env instance is deleted in BrowserProcessImpl::StartTearDown
   // after the metrics service is deleted.
 }
-
-namespace chrome {
-
-void AddAuraToolkitExtraParts(ChromeBrowserMainParts* main_parts) {
-  main_parts->AddParts(new ChromeBrowserMainExtraPartsAura());
-}
-
-}  // namespace chrome