Leave apps running on Windows and Linux when quitting Chrome from the wrench menu.

chrome/browser/lifetime/browser_close_manager.cc

 // Copyright 2013 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/lifetime/browser_close_manager.h"
 
 #include "base/command_line.h"
+#include "chrome/browser/background/background_mode_manager.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/download/download_service.h"
 #include "chrome/browser/download/download_service_factory.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_iterator.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/chrome_pages.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_switches.h"
 #include "content/public/browser/web_contents.h"
 
 BrowserCloseManager::BrowserCloseManager() : current_browser_(NULL) {}
 
 BrowserCloseManager::~BrowserCloseManager() {}
 
 void BrowserCloseManager::StartClosingBrowsers() {
   // If the session is ending or batch browser shutdown is disabled, skip
   // straight to closing the browsers. In the former case, there's no time to
   // wait for beforeunload dialogs; in the latter, the windows will manage
   // showing their own dialogs.
   if (browser_shutdown::GetShutdownType() == browser_shutdown::END_SESSION ||
       CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableBatchedShutdown)) {
+    // Tell everyone that we are shutting down.
+    browser_shutdown::SetTryingToQuit(true);
     CloseBrowsers();
     return;
   }
   TryToCloseBrowsers();
 }
 
 void BrowserCloseManager::CancelBrowserClose() {
   browser_shutdown::SetTryingToQuit(false);
   for (chrome::BrowserIterator it; !it.done(); it.Next()) {
     it->ResetBeforeUnloadHandlers();
@@ skipping 71 matching lines @@
     if (download_service->NonMaliciousDownloadCount() > 0) {
       Browser* browser =
           chrome::FindOrCreateTabbedBrowser(*it, chrome::GetActiveDesktop());
       DCHECK(browser);
       chrome::ShowDownloads(browser);
     }
   }
 }
 
 void BrowserCloseManager::CloseBrowsers() {
-  // Tell everyone that we are shutting down.
-  browser_shutdown::SetTryingToQuit(true);
-
 #if defined(ENABLE_SESSION_SERVICE)
   // Before we close the browsers shutdown all session services. That way an
   // exit can restore all browsers open before exiting.
   ProfileManager::ShutdownSessionServices();
 #endif
+  if (!browser_shutdown::IsTryingToQuit()) {
+    BackgroundModeManager* background_mode_manager =
+        g_browser_process->background_mode_manager();
+    if (background_mode_manager)
+      background_mode_manager->SuspendBackgroundMode();
+  }
 
   bool session_ending =
       browser_shutdown::GetShutdownType() == browser_shutdown::END_SESSION;
   for (scoped_ptr<chrome::BrowserIterator> it_ptr(
            new chrome::BrowserIterator());
        !it_ptr->done();) {
     Browser* browser = **it_ptr;
     browser->window()->Close();
     if (!session_ending) {
       it_ptr->Next();
@@ skipping 11 matching lines @@
       it_ptr.reset(new chrome::BrowserIterator());
       if (!it_ptr->done() && browser == **it_ptr) {
         // Destroying the browser should have removed it from the browser list.
         // We should never get here.
         NOTREACHED();
         return;
       }
     }
   }
 }