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

chrome/browser/apps/app_load_service_factory.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_factory.h"
+#include "chrome/browser/apps/app_load_service_factory.h"
 
-#include "apps/app_load_service.h"
+#include "chrome/browser/apps/app_load_service.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "content/public/browser/browser_context.h"
 #include "extensions/browser/app_window/app_window_registry.h"
 #include "extensions/browser/extension_prefs_factory.h"
 #include "extensions/browser/extension_registry_factory.h"
 #include "extensions/browser/extension_system_provider.h"
 #include "extensions/browser/extensions_browser_client.h"
 
 namespace apps {
 
 // static
 AppLoadService* AppLoadServiceFactory::GetForBrowserContext(
     content::BrowserContext* context) {
   return static_cast<AppLoadService*>(
       GetInstance()->GetServiceForBrowserContext(context, true));
 }
 
 AppLoadServiceFactory* AppLoadServiceFactory::GetInstance() {
   return base::Singleton<AppLoadServiceFactory>::get();
 }
 
 AppLoadServiceFactory::AppLoadServiceFactory()
     : BrowserContextKeyedServiceFactory(
-        "AppLoadService",
-        BrowserContextDependencyManager::GetInstance()) {
+          "AppLoadService",
+          BrowserContextDependencyManager::GetInstance()) {
   DependsOn(extensions::AppWindowRegistry::Factory::GetInstance());
   DependsOn(extensions::ExtensionPrefsFactory::GetInstance());
   DependsOn(extensions::ExtensionRegistryFactory::GetInstance());
   DependsOn(
       extensions::ExtensionsBrowserClient::Get()->GetExtensionSystemFactory());
 }
 
-AppLoadServiceFactory::~AppLoadServiceFactory() {
-}
+AppLoadServiceFactory::~AppLoadServiceFactory() {}
 
 KeyedService* AppLoadServiceFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
   return new AppLoadService(context);
 }
 
 bool AppLoadServiceFactory::ServiceIsNULLWhileTesting() const {
   return false;
 }
 
 bool AppLoadServiceFactory::ServiceIsCreatedWithBrowserContext() const {
   return true;
 }
 
 content::BrowserContext* AppLoadServiceFactory::GetBrowserContextToUse(
     content::BrowserContext* context) const {
   // Redirected in incognito.
-  return extensions::ExtensionsBrowserClient::Get()->
-      GetOriginalContext(context);
+  return extensions::ExtensionsBrowserClient::Get()->GetOriginalContext(
+      context);
 }
 
 }  // namespace apps