Android: Avoid linking with --gc-sections.

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/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 61 matching lines @@
 }
 #endif  // !defined(OS_ANDROID)
 
 #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
 
+#if !defined(OS_ANDROID)
 void MarkAsCleanShutdown() {
   // TODO(beng): Can this use ProfileManager::GetLoadedProfiles() instead?
   for (auto* browser : *BrowserList::GetInstance())
     browser->profile()->SetExitType(Profile::EXIT_NORMAL);
 }
+#endif
 
 void AttemptExitInternal(bool try_to_quit_application) {
   // On Mac, the platform-specific part handles setting this.
 #if !defined(OS_MACOSX)
   if (try_to_quit_application)
     browser_shutdown::SetTryingToQuit(true);
 #endif
 
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_CLOSE_ALL_BROWSERS_REQUEST,
@@ skipping 68 matching lines @@
       state->CommitPendingWrite();
     }
   }
   g_send_stop_request_to_session_manager = true;
   // On ChromeOS, always terminate the browser, regardless of the result of
   // AreAllBrowsersCloseable(). See crbug.com/123107.
   chrome::NotifyAndTerminate(true);
 #else
   // Reset the restart bit that might have been set in cancelled restart
   // request.
+#if !defined(OS_ANDROID)
   UserManager::Hide();
+#endif
   PrefService* pref_service = g_browser_process->local_state();
   pref_service->SetBoolean(prefs::kRestartLastSessionOnShutdown, false);
   AttemptExitInternal(false);
-#endif
+#endif  // defined(OS_CHROMEOS)
 }
 
 // The Android implementation is in application_lifetime_android.cc
 #if !defined(OS_ANDROID)
 void AttemptRestart() {
   // TODO(beng): Can this use ProfileManager::GetLoadedProfiles instead?
   for (auto* browser : *BrowserList::GetInstance())
     content::BrowserContext::SaveSessionState(browser->profile());
 
   PrefService* pref_service = g_browser_process->local_state();
@@ skipping 158 matching lines @@
 void OnAppExiting() {
   static bool notified = false;
   if (notified)
     return;
   notified = true;
   HandleAppExitingForPlatform();
 }
 #endif  // !defined(OS_ANDROID)
 
 }  // namespace chrome