Made launcher hidden when kicking off chrome in app mode.

chrome/browser/lifetime/application_lifetime_aura.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/command_line.h"
 #include "chrome/common/chrome_switches.h"
+#include "chrome/common/switch_utils.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/notifications/notification_ui_manager.h"
 #include "ui/views/widget/widget.h"
 
 #if defined(USE_ASH)
 #include "ash/shell.h"
 #include "ui/aura/client/capture_client.h"
 #endif
 
 namespace browser {
@@ skipping 12 matching lines @@
         SetCapture(NULL);
   }
 #else
   g_browser_process->notification_ui_manager()->CancelAll();
 #endif
 
   views::Widget::CloseAllSecondaryWidgets();
 
 #if defined(OS_CHROMEOS)
   if (!CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kDisableZeroBrowsersOpenForTests)) {
+      switches::kDisableZeroBrowsersOpenForTests) &&
+      !switches::IsRunningInAppMode()) {
     // App is exiting, call EndKeepAlive() on behalf of Aura Shell.
     EndKeepAlive();
     // Make sure we have notified the session manager that we are exiting.
     // This might be called from FastShutdown() or CloseAllBrowsers(), but not
     // if something prevents a browser from closing before SetTryingToQuit()
     // gets called (e.g. browser->TabsNeedBeforeUnloadFired() is true).
     // NotifyAndTerminate does nothing if called more than once.
     NotifyAndTerminate(true);

[oshima, 2013/01/30 22:08:20]

just FYI: I'm 100% sure if you can skip this one or not. Make sure
chrome properly exist, but not by getting killed by session_manager.

[zel, 2013/01/30 22:26:52]

works fine with this in place

   }
 #endif // OS_CHROMEOS
 }
 
 }  // namespace browser