Extract LazyBackgroundTaskQueue from ExtensionSystem.

extensions/shell/browser/shell_extension_system.cc

 // Copyright 2014 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 "extensions/shell/browser/shell_extension_system.h"
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 #include "extensions/browser/api/app_runtime/app_runtime_api.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/info_map.h"
-#include "extensions/browser/lazy_background_task_queue.h"
 #include "extensions/browser/notification_types.h"
 #include "extensions/browser/quota_service.h"
 #include "extensions/browser/runtime_data.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/file_util.h"
 
 using content::BrowserContext;
 using content::BrowserThread;
 
 namespace extensions {
@@ skipping 59 matching lines @@
   AppRuntimeEventRouter::DispatchOnLaunchedEvent(
       browser_context_, extension, extensions::SOURCE_UNTRACKED);
 }
 
 void ShellExtensionSystem::Shutdown() {
 }
 
 void ShellExtensionSystem::InitForRegularProfile(bool extensions_enabled) {
   runtime_data_.reset(
       new RuntimeData(ExtensionRegistry::Get(browser_context_)));
-  lazy_background_task_queue_.reset(
-      new LazyBackgroundTaskQueue(browser_context_));
   event_router_.reset(
       new EventRouter(browser_context_, ExtensionPrefs::Get(browser_context_)));
   quota_service_.reset(new QuotaService);
 }
 
 ExtensionService* ShellExtensionSystem::extension_service() {
   return nullptr;
 }
 
 RuntimeData* ShellExtensionSystem::runtime_data() {
@@ skipping 15 matching lines @@
 StateStore* ShellExtensionSystem::rules_store() {
   return nullptr;
 }
 
 InfoMap* ShellExtensionSystem::info_map() {
   if (!info_map_.get())
     info_map_ = new InfoMap;
   return info_map_.get();
 }
 
-LazyBackgroundTaskQueue* ShellExtensionSystem::lazy_background_task_queue() {
-  return lazy_background_task_queue_.get();
-}
-
 EventRouter* ShellExtensionSystem::event_router() {
   return event_router_.get();
 }
 
 QuotaService* ShellExtensionSystem::quota_service() {
   return quota_service_.get();
 }
 
 void ShellExtensionSystem::RegisterExtensionWithRequestContexts(
     const Extension* extension) {
@@ skipping 19 matching lines @@
 ContentVerifier* ShellExtensionSystem::content_verifier() {
   return nullptr;
 }
 
 scoped_ptr<ExtensionSet> ShellExtensionSystem::GetDependentExtensions(
     const Extension* extension) {
   return make_scoped_ptr(new ExtensionSet());
 }
 
 }  // namespace extensions