cros: Allow default app order to be loaded from an external file.

chrome/browser/chromeos/chrome_browser_main_chromeos.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/chromeos/chrome_browser_main_chromeos.h"
 
 #include <string>
 #include <vector>
 
 #include "ash/shell.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/chromeos/chromeos_version.h"
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/message_loop.h"
 #include "base/string_number_conversions.h"
 #include "base/string_split.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/audio/audio_handler.h"
 #include "chrome/browser/chromeos/boot_times_loader.h"
 #include "chrome/browser/chromeos/contacts/contact_manager.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
 #include "chrome/browser/chromeos/dbus/cros_dbus_service.h"
 #include "chrome/browser/chromeos/display/display_preferences.h"
 #include "chrome/browser/chromeos/display/primary_display_switch_observer.h"
 #include "chrome/browser/chromeos/external_metrics.h"
+#include "chrome/browser/chromeos/extensions/default_app_order.h"
 #include "chrome/browser/chromeos/imageburner/burn_manager.h"
 #include "chrome/browser/chromeos/input_method/input_method_manager.h"
 #include "chrome/browser/chromeos/input_method/xkeyboard.h"
 #include "chrome/browser/chromeos/kiosk_mode/kiosk_mode_idle_logout.h"
 #include "chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.h"
 #include "chrome/browser/chromeos/kiosk_mode/kiosk_mode_settings.h"
 #include "chrome/browser/chromeos/login/authenticator.h"
 #include "chrome/browser/chromeos/login/login_utils.h"
 #include "chrome/browser/chromeos/login/login_wizard.h"
 #include "chrome/browser/chromeos/login/screen_locker.h"
@@ skipping 354 matching lines @@
     // Redirects Chrome logging to the user data dir.
     logging::RedirectChromeLogging(parsed_command_line());
 
     // Initialize user policy before creating the profile so the profile
     // initialization code sees policy settings.
     // Guest accounts are not subject to user policy.
     if (!chromeos::UserManager::Get()->IsLoggedInAsGuest()) {
       g_browser_process->browser_policy_connector()->InitializeUserPolicy(
           username, false  /* wait_for_policy_fetch */);
     }
+
+    // Load the default app order synchronously for restarting case.
+    app_order_loader_.reset(
+        new chromeos::default_app_order::ExternalLoader(false /* async */));
+
     chromeos::UserManager::Get()->SessionStarted();
   }
 
+  if (!app_order_loader_) {
+    app_order_loader_.reset(
+        new chromeos::default_app_order::ExternalLoader(true /* async */));
+  }
+
   // In Aura builds this will initialize ash::Shell.
   ChromeBrowserMainPartsLinux::PreProfileInit();
 }
 
 void ChromeBrowserMainPartsChromeos::PostProfileInit() {
   // -- This used to be in ChromeBrowserMainParts::PreMainMessageLoopRun()
   // -- just after CreateProfile().
 
   policy::BrowserPolicyConnector* connector =
       g_browser_process->browser_policy_connector();
@@ skipping 197 matching lines @@
       LOG(WARNING) << "low_mem: Part of '100MB' experiment";
       chromeos::LowMemoryObserver::SetLowMemoryMargin(100);
     } else if (trial->group() == margin_200mb) {
       LOG(WARNING) << "low_mem: Part of '200MB' experiment";
       chromeos::LowMemoryObserver::SetLowMemoryMargin(200);
     } else {
       LOG(WARNING) << "low_mem: Part of 'default' experiment";
     }
   }
 }