Moved JsonPrefStore to use SequencedWorkerPool

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/file_path.h"
@@ skipping 172 matching lines @@
 
 std::string OffTheRecordProfileImpl::GetProfileName() {
   // Incognito profile should not return the profile name.
   return std::string();
 }
 
 FilePath OffTheRecordProfileImpl::GetPath() {
   return profile_->GetPath();
 }
 
+scoped_refptr<base::SequencedTaskRunner>
+OffTheRecordProfileImpl::GetIOTaskRunner() {
+  return profile_->GetIOTaskRunner();
+}
+
 bool OffTheRecordProfileImpl::IsOffTheRecord() const {
   return true;
 }
 
 Profile* OffTheRecordProfileImpl::GetOffTheRecordProfile() {
   return this;
 }
 
 void OffTheRecordProfileImpl::DestroyOffTheRecordProfile() {
   // Suicide is bad!
@@ skipping 275 matching lines @@
   if (!profile)
     profile = new OffTheRecordProfileImpl(this);
   profile->Init();
   return profile;
 }
 
 base::Callback<ChromeURLDataManagerBackend*(void)>
     OffTheRecordProfileImpl::GetChromeURLDataManagerBackendGetter() const {
   return io_data_.GetChromeURLDataManagerBackendGetter();
 }