Cleanup: Pull some browser keep alive functions into its own file.

chrome/browser/ui/browser.cc

 // Copyright 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.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // defined(OS_WIN)
@@ skipping 44 matching lines @@
 #include "chrome/browser/extensions/browser_extension_window_controller.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_ui_util.h"
 #include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/file_select_helper.h"
 #include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/history/top_sites_factory.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
+#include "chrome/browser/lifetime/browser_keep_alive.h"
 #include "chrome/browser/notifications/notification_ui_manager.h"
 #include "chrome/browser/pepper_broker_infobar_delegate.h"
 #include "chrome/browser/prefs/incognito_mode_prefs.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_destroyer.h"
 #include "chrome/browser/profiles/profile_metrics.h"
 #include "chrome/browser/profiles/profiles_state.h"
 #include "chrome/browser/repost_form_warning_controller.h"
 #include "chrome/browser/search/search.h"
 #include "chrome/browser/sessions/session_restore.h"
@@ skipping 631 matching lines @@
 
 void Browser::OnWindowClosing() {
   if (!ShouldCloseWindow())
     return;
 
   // Application should shutdown on last window close if the user is explicitly
   // trying to quit, or if there is nothing keeping the browser alive (such as
   // AppController on the Mac, or BackgroundContentsService for background
   // pages).
   bool should_quit_if_last_browser =
-      browser_shutdown::IsTryingToQuit() || !chrome::WillKeepAlive();
+      browser_shutdown::IsTryingToQuit() || !browser_lifetime::WillKeepAlive();
 
   if (should_quit_if_last_browser && chrome::ShouldStartShutdown(this)) {
 #if defined(OS_WIN)
     browser_watcher::ExitFunnel::RecordSingleEvent(
           chrome::kBrowserExitCodesRegistryPath, L"LastWindowClose");
 #endif
     browser_shutdown::OnShutdownStarting(browser_shutdown::WINDOW_CLOSE);
   }
 
   // Don't use GetForProfileIfExisting here, we want to force creation of the
@@ skipping 1964 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         ui::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }