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

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 "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/message_loop/message_loop.h"
 #include "base/prefs/pref_service.h"
 #include "base/process/process.h"
 #include "base/process/process_handle.h"
 #include "base/trace_event/trace_event.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_process_platform_part.h"
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/download/download_service.h"
 #include "chrome/browser/lifetime/browser_close_manager.h"
+#include "chrome/browser/lifetime/browser_keep_alive.h"
 #include "chrome/browser/metrics/thread_watcher.h"
 #include "chrome/browser/profiles/profile.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_tabstrip.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/user_manager.h"
@@ skipping 41 matching lines @@
 
   // Check TabsNeedBeforeUnloadFired().
   for (; !browser_it.done(); browser_it.Next()) {
     if (browser_it->TabsNeedBeforeUnloadFired())
       return false;
   }
   return true;
 }
 #endif  // !defined(OS_ANDROID)
 
-int g_keep_alive_count = 0;
-bool g_disable_shutdown_for_testing = false;
-
 #if defined(OS_CHROMEOS)
 // Whether chrome should send stop request to a session manager.
 bool g_send_stop_request_to_session_manager = false;
 #endif
 
 }  // namespace
 
 void MarkAsCleanShutdown() {
   // TODO(beng): Can this use ProfileManager::GetLoadedProfiles() instead?
   for (chrome::BrowserIterator it; !it.done(); it.Next())
@@ skipping 18 matching lines @@
 void CloseAllBrowsersAndQuit() {
   browser_shutdown::SetTryingToQuit(true);
   CloseAllBrowsers();
 }
 
 void CloseAllBrowsers() {
   // If there are no browsers and closing the last browser would quit the
   // application, send the APP_TERMINATING action here. Otherwise, it will be
   // sent by RemoveBrowser() when the last browser has closed.
   if (chrome::GetTotalBrowserCount() == 0 &&
-      (browser_shutdown::IsTryingToQuit() || !chrome::WillKeepAlive())) {
+      (browser_shutdown::IsTryingToQuit() ||
+       !browser_lifetime::WillKeepAlive())) {
     // Tell everyone that we are shutting down.
     browser_shutdown::SetTryingToQuit(true);
 
 #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
 
@@ skipping 168 matching lines @@
   funnel.RecordEvent(L"KillProcess");
 #endif
 
   // On Windows 7 and later, the system will consider the process ripe for
   // termination as soon as it hides or destroys its windows. Since any
   // execution past that point will be non-deterministically cut short, we
   // might as well put ourselves out of that misery deterministically.
   base::Process::Current().Terminate(0, false);
 }
 
-void IncrementKeepAliveCount() {
-  // Increment the browser process refcount as long as we're keeping the
-  // application alive.
-  if (!WillKeepAlive())
-    g_browser_process->AddRefModule();
-  ++g_keep_alive_count;
-}
-
-void CloseAllBrowsersIfNeeded() {
-  // If there are no browsers open and we aren't already shutting down,
-  // initiate a shutdown. Also skips shutdown if this is a unit test.
-  // (MessageLoop::current() == null or explicitly disabled).
-  if (chrome::GetTotalBrowserCount() == 0 &&
-      !browser_shutdown::IsTryingToQuit() && base::MessageLoop::current() &&
-      !g_disable_shutdown_for_testing) {
-    CloseAllBrowsers();
-  }
-}
-
-void DecrementKeepAliveCount() {
-  DCHECK_GT(g_keep_alive_count, 0);
-  --g_keep_alive_count;
-  // Although we should have a browser process, if there is none,
-  // there is nothing to do.
-  if (!g_browser_process) return;
-
-  // Allow the app to shutdown again.
-  if (!WillKeepAlive()) {
-    g_browser_process->ReleaseModule();
-    CloseAllBrowsersIfNeeded();
-  }
-}
-
-bool WillKeepAlive() {
-  return g_keep_alive_count > 0;
-}
-
 void NotifyAppTerminating() {
   static bool notified = false;
   if (notified)
     return;
   notified = true;
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_APP_TERMINATING,
       content::NotificationService::AllSources(),
       content::NotificationService::NoDetails());
 }
@@ skipping 56 matching lines @@
   // 2. If the desktop type of the browser going away is desktop and the ASH
   //    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;
 }
 
-void DisableShutdownForTesting(bool disable_shutdown_for_testing) {
-  g_disable_shutdown_for_testing = disable_shutdown_for_testing;
-  if (!g_disable_shutdown_for_testing && !WillKeepAlive())
-    CloseAllBrowsersIfNeeded();
-}
-
 }  // namespace chrome