Move application lifetime functionality off BrowserList.

chrome/browser/ui/browser_list_win.cc

Index: chrome/browser/ui/browser_list_win.cc
===================================================================
--- chrome/browser/ui/browser_list_win.cc	(revision 137868)
+++ chrome/browser/ui/browser_list_win.cc	(working copy)
@@ -1,14 +0,0 @@
-// 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/browser_list.h"
-
-#include "ui/views/widget/widget.h"
-
-// static
-void BrowserList::HandleAppExitingForPlatform() {
-#if !defined(USE_AURA)
-  views::Widget::CloseAllSecondaryWidgets();
-#endif
-}