Make "source" a required argument of AppLaunchParams and fill in the argument in all call points.

chrome/browser/chromeos/first_run/first_run.cc

 // Copyright 2013 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 "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chromeos/first_run/first_run_controller.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/ui/extensions/app_launch_params.h"
 #include "chrome/browser/ui/extensions/application_launch.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/pref_names.h"
 #include "chromeos/chromeos_switches.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/user_manager/user_manager.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_service.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/common/constants.h"
 
 namespace chromeos {
 namespace first_run {
 
 namespace {
 
 void LaunchDialogForProfile(Profile* profile) {
   ExtensionService* service =
       extensions::ExtensionSystem::Get(profile)->extension_service();
   if (!service)
     return;
 
   const extensions::Extension* extension =
       service->GetExtensionById(extension_misc::kFirstRunDialogId, false);
   if (!extension)
     return;
 
-  OpenApplication(AppLaunchParams(
-      profile, extension, extensions::LAUNCH_CONTAINER_WINDOW, NEW_WINDOW));
+  OpenApplication(
+      AppLaunchParams(profile, extension, extensions::LAUNCH_CONTAINER_WINDOW,
+                      NEW_WINDOW, extensions::SOURCE_CHROME_INTERNAL));
   profile->GetPrefs()->SetBoolean(prefs::kFirstRunTutorialShown, true);
 }
 
 // Object of this class waits for session start. Then it launches or not
 // launches first-run dialog depending on user prefs and flags. Than object
 // deletes itself.
 class DialogLauncher : public content::NotificationObserver {
  public:
   explicit DialogLauncher(Profile* profile)
       : profile_(profile) {
@@ skipping 48 matching lines @@
       user_manager::UserManager::Get()->GetActiveUser()));
 }
 
 void LaunchTutorial() {
   UMA_HISTOGRAM_BOOLEAN("CrosFirstRun.TutorialLaunched", true);
   FirstRunController::Start();
 }
 
 }  // namespace first_run
 }  // namespace chromeos