Introduce HistoryClient interface

chrome/test/base/testing_profile.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/test/base/testing_profile.h"
 
 #include "build/build_config.h"
 
 #include "base/base_paths.h"
 #include "base/command_line.h"
@@ skipping 408 matching lines @@
   return new FaviconService(static_cast<Profile*>(profile));
 }
 
 void TestingProfile::CreateFaviconService() {
   // It is up to the caller to create the history service if one is needed.
   FaviconServiceFactory::GetInstance()->SetTestingFactory(
       this, BuildFaviconService);
 }
 
 static KeyedService* BuildHistoryService(content::BrowserContext* profile) {
-  return new HistoryService(static_cast<Profile*>(profile));
+  return new HistoryService(NULL, static_cast<Profile*>(profile));
 }
 
 bool TestingProfile::CreateHistoryService(bool delete_file, bool no_db) {
   DestroyHistoryService();
   if (delete_file) {
     base::FilePath path = GetPath();
     path = path.Append(chrome::kHistoryFilename);
     if (!base::DeleteFile(path, false) || base::PathExists(path))
       return false;
   }
@@ skipping 532 matching lines @@
       path_,
       delegate_,
       extension_policy_,
       pref_service_.Pass(),
       incognito_,
       guest_session_,
       managed_user_id_,
       policy_service_.Pass(),
       testing_factories_));
 }