Revert of Revert of Abstract //content-level dependencies out of InMemoryURLIndex

chrome/browser/autocomplete/in_memory_url_index_factory.cc

 // Copyright 2015 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/autocomplete/in_memory_url_index_factory.h"
 
 #include "base/memory/singleton.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/autocomplete/in_memory_url_index.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/profiles/incognito_helpers.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/keyed_service/core/service_access_type.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/common/url_constants.h"
 
 // static
 InMemoryURLIndex* InMemoryURLIndexFactory::GetForProfile(Profile* profile) {
   return static_cast<InMemoryURLIndex*>(
       GetInstance()->GetServiceForBrowserContext(profile, true));
 }
 
 // static
 InMemoryURLIndexFactory* InMemoryURLIndexFactory::GetInstance() {
   return Singleton<InMemoryURLIndexFactory>::get();
 }
 
 InMemoryURLIndexFactory::InMemoryURLIndexFactory()
     : BrowserContextKeyedServiceFactory(
           "InMemoryURLIndex",
           BrowserContextDependencyManager::GetInstance()) {
   DependsOn(BookmarkModelFactory::GetInstance());
   DependsOn(HistoryServiceFactory::GetInstance());
 }
 
 InMemoryURLIndexFactory::~InMemoryURLIndexFactory() {
 }
 
 KeyedService* InMemoryURLIndexFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
   // Do not force creation of the HistoryService if saving history is disabled.
   Profile* profile = Profile::FromBrowserContext(context);
+  SchemeSet chrome_schemes_to_whitelist;
+  chrome_schemes_to_whitelist.insert(content::kChromeUIScheme);
   InMemoryURLIndex* in_memory_url_index = new InMemoryURLIndex(
       BookmarkModelFactory::GetForProfile(profile),
       HistoryServiceFactory::GetForProfile(profile,
                                            ServiceAccessType::IMPLICIT_ACCESS),
-      profile->GetPath(),
-      profile->GetPrefs()->GetString(prefs::kAcceptLanguages));
+      content::BrowserThread::GetBlockingPool(), profile->GetPath(),
+      profile->GetPrefs()->GetString(prefs::kAcceptLanguages),
+      chrome_schemes_to_whitelist);
   in_memory_url_index->Init();
   return in_memory_url_index;
 }
 
 content::BrowserContext* InMemoryURLIndexFactory::GetBrowserContextToUse(
     content::BrowserContext* context) const {
   return chrome::GetBrowserContextRedirectedInIncognito(context);
 }
 
 bool InMemoryURLIndexFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }