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

chrome/browser/lifetime/application_lifetime.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/lifetime/application_lifetime.h"
 
 #include "ash/shell.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 77 matching lines @@
 
 void AttemptExitInternal() {
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_CLOSE_ALL_BROWSERS_REQUEST,
       content::NotificationService::AllSources(),
       content::NotificationService::NoDetails());
 
   g_browser_process->platform_part()->AttemptExit();
 }
 
+void CloseAllBrowsersAndQuit() {
+  browser_shutdown::SetTryingToQuit(true);
+  CloseAllBrowsers();
+}
+
 void CloseAllBrowsers() {
   // If there are no browsers, send the APP_TERMINATING action here. Otherwise,

[benwells, 2013/10/20 23:46:22]

Please update this comment too, it doesn't capture the condition that is being
tested (and I'm having trouble understanding what is going on without looking up
other function definitions).

[Sam McNally, 2013/10/21 04:31:03]

Done.

   // it will be sent by RemoveBrowser() when the last browser has closed.
   if (browser_shutdown::ShuttingDownWithoutClosingBrowsers() ||
-      chrome::GetTotalBrowserCount() == 0) {
-    // Tell everyone that we are shutting down.
-    browser_shutdown::SetTryingToQuit(true);
+      (chrome::GetTotalBrowserCount() == 0 &&
+       (browser_shutdown::IsTryingToQuit() || !chrome::WillKeepAlive()))) {
 
 #if defined(ENABLE_SESSION_SERVICE)
     // If ShuttingDownWithoutClosingBrowsers() returns true, the session
     // services may not get a chance to shut down normally, so explicitly shut
     // them down here to ensure they have a chance to persist their data.
     ProfileManager::ShutdownSessionServices();
 #endif
 
     chrome::NotifyAndTerminate(true);
     chrome::OnAppExiting();
@@ skipping 50 matching lines @@
     base::debug::TraceLog::GetInstance()->SetEnabled(
         category_filter,
         base::debug::TraceLog::RECORD_UNTIL_FULL);
   }
   TRACE_EVENT0("shutdown", "StartShutdownTracing");
 }
 
 // The Android implementation is in application_lifetime_android.cc
 #if !defined(OS_ANDROID)
 void AttemptRestart() {
+  // Tell everyone that we are shutting down.
+  browser_shutdown::SetTryingToQuit(true);
+
   // TODO(beng): Can this use ProfileManager::GetLoadedProfiles instead?
   for (chrome::BrowserIterator it; !it.done(); it.Next())
     content::BrowserContext::SaveSessionState(it->profile());
 
   PrefService* pref_service = g_browser_process->local_state();
   pref_service->SetBoolean(prefs::kWasRestarted, true);
 
 #if defined(OS_CHROMEOS)
   // For CrOS instead of browser restart (which is not supported) perform a full
   // sign out. Session will be only restored if user has that setting set.
@@ skipping 11 matching lines @@
 void AttemptRestartWithModeSwitch() {
   // The kRestartSwitchMode preference does not exists for Windows 7 and older
   // operating systems so there is no need for OS version check.
   PrefService* prefs = g_browser_process->local_state();
   prefs->SetBoolean(prefs::kRestartSwitchMode, true);
   AttemptRestart();
 }
 #endif
 
 void AttemptExit() {
+  // Tell everyone that we are shutting down.
+  browser_shutdown::SetTryingToQuit(true);
+
   // If we know that all browsers can be closed without blocking,
   // don't notify users of crashes beyond this point.
   // Note that MarkAsCleanShutdown() does not set UMA's exit cleanly bit
   // so crashes during shutdown are still reported in UMA.
 #if !defined(OS_ANDROID)
   // Android doesn't use Browser.
   if (AreAllBrowsersCloseable())
     MarkAsCleanShutdown();
 #endif
   AttemptExitInternal();
 }
 
 #if defined(OS_CHROMEOS)
 // A function called when SIGTERM is received.
 void ExitCleanly() {
   // We always mark exit cleanly because SessionManager may kill
   // chrome in 3 seconds after SIGTERM.
   g_browser_process->EndSession();
 
+  // Tell everyone that we are shutting down.
+  browser_shutdown::SetTryingToQuit(true);
+
   // Don't block when SIGTERM is received. AreaAllBrowsersCloseable()
   // can be false in following cases. a) power-off b) signout from
   // screen locker.
   if (!AreAllBrowsersCloseable())
     browser_shutdown::OnShutdownStarting(browser_shutdown::END_SESSION);
   AttemptExitInternal();
 }
 #endif
 
 void SessionEnding() {
@@ skipping 144 matching lines @@
   //    environment is still active.
   if (browser->host_desktop_type() == chrome::HOST_DESKTOP_TYPE_NATIVE)
     return !ash::Shell::HasInstance();
   else if (browser->host_desktop_type() == chrome::HOST_DESKTOP_TYPE_ASH)
     return BrowserList::GetInstance(chrome::HOST_DESKTOP_TYPE_NATIVE)->empty();
 #endif
   return true;
 }
 
 }  // namespace chrome