Split the desktop portion of application_lifetime.cc into its own file.

chrome/browser/lifetime/application_lifetime_desktop.h

Index: chrome/browser/lifetime/application_lifetime_desktop.h
diff --git a/chrome/browser/lifetime/application_lifetime.h b/chrome/browser/lifetime/application_lifetime_desktop.h
similarity index 64%
copy from chrome/browser/lifetime/application_lifetime.h
copy to chrome/browser/lifetime/application_lifetime_desktop.h
index 3cf18549cd37768132f3af62cd9e806c18beded3..8b998cb8f2ce45def7b77c2f6c5dcfb3596a4006 100644
--- a/chrome/browser/lifetime/application_lifetime.h
+++ b/chrome/browser/lifetime/application_lifetime_desktop.h
@@ -1,11 +1,15 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2015 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.
 
-#ifndef CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_H_
-#define CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_H_
+#ifndef CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_DESKTOP_H_
+#define CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_DESKTOP_H_
 
-#include "base/compiler_specific.h"
+#include "base/basictypes.h"
+
+#if defined(OS_ANDROID) || defined(OS_IOS)
+#error Not used on mobile
+#endif
 
 class Browser;
 
@@ -18,58 +22,6 @@ namespace chrome {
 // SIGTERM to start actual exit process.
 void AttemptUserExit();
 
-// Starts to collect shutdown traces. On ChromeOS this will start immediately
-// on AttemptUserExit() and all other systems will start once all tabs are
-// closed.
-void StartShutdownTracing();
-
-// Starts a user initiated restart process. On platforms other than
-// chromeos, this sets a restart bit in the preference so that
-// chrome will be restarted at the end of shutdown process. On
-// ChromeOS, this simply exits the chrome, which lets sesssion
-// manager re-launch the browser with restore last session flag.
-void AttemptRestart();
-
-#if defined(OS_WIN)
-enum AshExecutionStatus {
-  ASH_KEEP_RUNNING,
-  ASH_TERMINATE,
-};
-
-// Helper function to activate the desktop from Ash mode. The
-// |ash_execution_status| parameter indicates if we should exit Ash after
-// activating desktop.
-void ActivateDesktopHelper(AshExecutionStatus ash_execution_status);
-
-// Windows 7/8 specific: Like AttemptRestart but if chrome is running
-// in desktop mode it starts in metro mode and vice-versa. The switching like
-// the restarting is controlled by a preference.
-void AttemptRestartToDesktopMode();
-// Launches Chrome into Windows 8 metro mode on Windows 8. On Windows 7 it
-// launches Chrome into Windows ASH.
-void AttemptRestartToMetroMode();
-#endif
-
-// Attempt to exit by closing all browsers.  This is equivalent to
-// CloseAllBrowsers() on platforms where the application exits
-// when no more windows are remaining. On other platforms (the Mac),
-// this will additionally exit the application if all browsers are
-// successfully closed.
-//  Note that he exit process may be interrupted by download or
-// unload handler, and the browser may or may not exit.
-void AttemptExit();
-
-#if defined(OS_CHROMEOS)
-// Shutdown chrome cleanly without blocking. This is called
-// when SIGTERM is received on Chrome OS, and always sets
-// exit-cleanly bit and exits the browser, even if there is
-// ongoing downloads or a page with onbeforeunload handler.
-//
-// If you need to exit or restart in your code on ChromeOS,
-// use AttemptExit or AttemptRestart respectively.
-void ExitCleanly();
-#endif
-
 // Closes all browsers and if successful, quits.
 void CloseAllBrowsersAndQuit();
 
@@ -79,9 +31,6 @@ void CloseAllBrowsersAndQuit();
 // browser windows keeping it alive or the application is quitting.
 void CloseAllBrowsers();
 
-// Begins shutdown of the application when the desktop session is ending.
-void SessionEnding();
-
 // Tells the BrowserList to keep the application alive after the last Browser
 // closes. This is implemented as a count, so callers should pair their calls
 // to IncrementKeepAliveCount() with matching calls to DecrementKeepAliveCount()
@@ -97,17 +46,6 @@ void DecrementKeepAliveCount();
 // closes.
 bool WillKeepAlive();
 
-// Emits APP_TERMINATING notification. It is guaranteed that the
-// notification is sent only once.
-void NotifyAppTerminating();
-
-// Send out notifications.
-// For ChromeOS, also request session manager to end the session.
-void NotifyAndTerminate(bool fast_path);
-
-// Called once the application is exiting.
-void OnAppExiting();
-
 // Called once the application is exiting to do any platform specific
 // processing required.
 void HandleAppExitingForPlatform();
@@ -119,6 +57,37 @@ bool ShouldStartShutdown(Browser* browser);
 // Disable browser shutdown for unit tests.
 void DisableShutdownForTesting(bool disable_shutdown_for_testing);
 
+#if defined(OS_CHROMEOS)
+// Shutdown chrome cleanly without blocking. This is called
+// when SIGTERM is received on Chrome OS, and always sets
+// exit-cleanly bit and exits the browser, even if there is
+// ongoing downloads or a page with onbeforeunload handler.
+//
+// If you need to exit or restart in your code on ChromeOS,
+// use AttemptExit or AttemptRestart respectively.
+void ExitCleanly();
+#endif
+
+#if defined(OS_WIN)
+enum AshExecutionStatus {
+  ASH_KEEP_RUNNING,
+  ASH_TERMINATE,
+};
+
+// Helper function to activate the desktop from Ash mode. The
+// |ash_execution_status| parameter indicates if we should exit Ash after
+// activating desktop.
+void ActivateDesktopHelper(AshExecutionStatus ash_execution_status);
+
+// Windows 7/8 specific: Like AttemptRestart but if chrome is running
+// in desktop mode it starts in metro mode and vice-versa. The switching like
+// the restarting is controlled by a preference.
+void AttemptRestartToDesktopMode();
+// Launches Chrome into Windows 8 metro mode on Windows 8. On Windows 7 it
+// launches Chrome into Windows ASH.
+void AttemptRestartToMetroMode();
+#endif
+
 }  // namespace chrome
 
-#endif  // CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_H_
+#endif  // CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_DESKTOP_H_