Split WarningService from ExtensionSystem.

chrome/browser/extensions/test_extension_system.cc

 // Copyright (c) 2012 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/extensions/test_extension_system.h"
 
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/extensions/blacklist.h"
 #include "chrome/browser/extensions/declarative_user_script_master.h"
@@ skipping 128 matching lines @@
 TestExtensionSystem::lazy_background_task_queue() {
   return NULL;
 }
 
 void TestExtensionSystem::SetEventRouter(scoped_ptr<EventRouter> event_router) {
   event_router_.reset(event_router.release());
 }
 
 EventRouter* TestExtensionSystem::event_router() { return event_router_.get(); }
 
-WarningService* TestExtensionSystem::warning_service() {
-  return NULL;
-}
-
 Blacklist* TestExtensionSystem::blacklist() {
   return blacklist_.get();
 }
 
 ErrorConsole* TestExtensionSystem::error_console() {
   return error_console_.get();
 }
 
 InstallVerifier* TestExtensionSystem::install_verifier() {
   return install_verifier_.get();
@@ skipping 37 matching lines @@
   }
   return master;
 }
 
 // static
 KeyedService* TestExtensionSystem::Build(content::BrowserContext* profile) {
   return new TestExtensionSystem(static_cast<Profile*>(profile));
 }
 
 }  // namespace extensions