Add chrome/browser/apps/BUILD.gn and move Chrome-specific code there

chrome/browser/apps/app_load_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 "apps/app_load_service.h"
+#include "chrome/browser/apps/app_load_service.h"
 
-#include "apps/app_load_service_factory.h"
 #include "apps/app_restore_service.h"
 #include "apps/launcher.h"
+#include "chrome/browser/apps/app_load_service_factory.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/unpacked_installer.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 #include "extensions/browser/app_window/app_window_registry.h"
 #include "extensions/browser/extension_host.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/notification_types.h"
 #include "extensions/common/extension.h"
 
 using extensions::Extension;
 using extensions::ExtensionPrefs;
 using extensions::ExtensionSystem;
 
 namespace apps {
 
 AppLoadService::PostReloadAction::PostReloadAction()
     : action_type(LAUNCH_FOR_RELOAD),
-      command_line(base::CommandLine::NO_PROGRAM) {
-}
+      command_line(base::CommandLine::NO_PROGRAM) {}
 
 AppLoadService::AppLoadService(content::BrowserContext* context)
     : context_(context) {
   registrar_.Add(this,
                  extensions::NOTIFICATION_EXTENSION_HOST_DID_STOP_FIRST_LOAD,
                  content::NotificationService::AllSources());
   extensions::ExtensionRegistry::Get(context_)->AddObserver(this);
 }
 
 AppLoadService::~AppLoadService() = default;
@@ skipping 109 matching lines @@
             Extension::DISABLE_RELOAD) != 0;
   }
   return false;
 }
 
 bool AppLoadService::HasPostReloadAction(const std::string& extension_id) {
   return post_reload_actions_.find(extension_id) != post_reload_actions_.end();
 }
 
 }  // namespace apps