Introduce DeclarativeUserScriptManager.

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"
@@ skipping 88 matching lines @@
   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 NULL;
+  return nullptr;
 }
 
 RuntimeData* ShellExtensionSystem::runtime_data() {
   return runtime_data_.get();
 }
 
 ManagementPolicy* ShellExtensionSystem::management_policy() {
-  return NULL;
+  return nullptr;
 }
 
 SharedUserScriptMaster* ShellExtensionSystem::shared_user_script_master() {
-  return NULL;
+  return nullptr;
+}
+
+DeclarativeUserScriptManager*
+ShellExtensionSystem::declarative_user_script_manager() {
+  return nullptr;
 }
 
 StateStore* ShellExtensionSystem::state_store() {
-  return NULL;
+  return nullptr;
 }
 
 StateStore* ShellExtensionSystem::rules_store() {
-  return NULL;
+  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();
 }
 
 ErrorConsole* ShellExtensionSystem::error_console() {
-  return NULL;
+  return nullptr;
 }
 
 InstallVerifier* ShellExtensionSystem::install_verifier() {
-  return NULL;
+  return nullptr;
 }
 
 QuotaService* ShellExtensionSystem::quota_service() {
   return quota_service_.get();
 }
 
 void ShellExtensionSystem::RegisterExtensionWithRequestContexts(
     const Extension* extension) {
   BrowserThread::PostTask(BrowserThread::IO,
                           FROM_HERE,
                           base::Bind(&InfoMap::AddExtension,
                                      info_map(),
                                      make_scoped_refptr(extension),
                                      base::Time::Now(),
                                      false,
                                      false));
 }
 
 void ShellExtensionSystem::UnregisterExtensionWithRequestContexts(
     const std::string& extension_id,
     const UnloadedExtensionInfo::Reason reason) {
 }
 
 const OneShotEvent& ShellExtensionSystem::ready() const {
   return ready_;
 }
 
 ContentVerifier* ShellExtensionSystem::content_verifier() {
-  return NULL;
+  return nullptr;
 }
 
 scoped_ptr<ExtensionSet> ShellExtensionSystem::GetDependentExtensions(
     const Extension* extension) {
   return make_scoped_ptr(new ExtensionSet());
 }
 
-DeclarativeUserScriptMaster*
-ShellExtensionSystem::GetDeclarativeUserScriptMasterByExtension(
-    const ExtensionId& extension_id) {
-  return NULL;
-}
-
 }  // namespace extensions