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

chrome/browser/search/hotword_service.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 "chrome/browser/search/hotword_service.h"
 
 #include "base/command_line.h"
 #include "base/i18n/case_conversion.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/path_service.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/api/hotword_private/hotword_private_api.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/pending_extension_manager.h"
 #include "chrome/browser/extensions/updater/extension_updater.h"
 #include "chrome/browser/extensions/webstore_startup_installer.h"
 #include "chrome/browser/plugins/plugin_prefs.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/hotword_audio_history_handler.h"
 #include "chrome/browser/search/hotword_service_factory.h"
+#include "chrome/browser/ui/extensions/app_launch_params.h"
 #include "chrome/browser/ui/extensions/application_launch.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/grit/generated_resources.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/plugin_service.h"
 #include "content/public/common/webplugininfo.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/uninstall_reason.h"
+#include "extensions/common/constants.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/one_shot_event.h"
 #include "ui/base/l10n/l10n_util.h"
 
 using extensions::BrowserContextKeyedAPIFactory;
 using extensions::HotwordPrivateEventService;
 
 namespace {
 
 // Allowed languages for hotwording.
@@ skipping 434 matching lines @@
   hotword_audio_verification_launch_mode_ = launch_mode;
 
   ExtensionService* extension_service = GetExtensionService(profile_);
   if (!extension_service)
     return;
   const extensions::Extension* extension = extension_service->GetExtensionById(
       extension_misc::kHotwordAudioVerificationAppId, true);
   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));
 }
 
 HotwordService::LaunchMode
 HotwordService::GetHotwordAudioVerificationLaunchMode() {
   return hotword_audio_verification_launch_mode_;
 }
 
 void HotwordService::StartTraining() {
   training_ = true;
 
@@ skipping 93 matching lines @@
     return false;
 
   std::string previous_locale =
       profile_->GetPrefs()->GetString(prefs::kHotwordPreviousLanguage);
   std::string locale = GetCurrentLocale(profile_);
 
   // If it's a new locale, then the old extension should be uninstalled.
   return locale != previous_locale &&
       HotwordService::DoesHotwordSupportLanguage(profile_);
 }