Use ThreadChecker rather than DCHECK_CURRENTLY_ON.

chrome/browser/profiles/off_the_record_profile_impl.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/profiles/off_the_record_profile_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
@@ skipping 337 matching lines @@
 
 content::ResourceContext* OffTheRecordProfileImpl::GetResourceContext() {
   return io_data_->GetResourceContext();
 }
 
 net::SSLConfigService* OffTheRecordProfileImpl::GetSSLConfigService() {
   return profile_->GetSSLConfigService();
 }
 
 HostContentSettingsMap* OffTheRecordProfileImpl::GetHostContentSettingsMap() {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   // Retrieve the host content settings map of the parent profile in order to
   // ensure the preferences have been migrated.
   profile_->GetHostContentSettingsMap();
   if (!host_content_settings_map_.get()) {
     host_content_settings_map_ = new HostContentSettingsMap(GetPrefs(), true);
 #if defined(ENABLE_EXTENSIONS)
     ExtensionService* extension_service =
         extensions::ExtensionSystem::Get(this)->extension_service();
     if (extension_service) {
       extension_service->RegisterContentSettings(
@@ skipping 173 matching lines @@
 PrefProxyConfigTracker* OffTheRecordProfileImpl::CreateProxyConfigTracker() {
 #if defined(OS_CHROMEOS)
   if (chromeos::ProfileHelper::IsSigninProfile(this)) {
     return ProxyServiceFactory::CreatePrefProxyConfigTrackerOfLocalState(
         g_browser_process->local_state());
   }
 #endif  // defined(OS_CHROMEOS)
   return ProxyServiceFactory::CreatePrefProxyConfigTrackerOfProfile(
       GetPrefs(), g_browser_process->local_state());
 }