[chrome/browser/chromeos/policy] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

chrome/browser/chromeos/policy/user_policy_disk_cache.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/chromeos/policy/user_policy_disk_cache.h"
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/location.h"
 #include "base/logging.h"
-#include "base/message_loop/message_loop_proxy.h"
 #include "base/metrics/histogram.h"
 #include "base/sequenced_task_runner.h"
+#include "base/single_thread_task_runner.h"
+#include "base/thread_task_runner_handle.h"
 #include "components/policy/core/common/cloud/enterprise_metrics.h"
 #include "policy/proto/device_management_local.pb.h"
 
 namespace em = enterprise_management;
 
 namespace policy {
 
 UserPolicyDiskCache::Delegate::~Delegate() {}
 
 UserPolicyDiskCache::UserPolicyDiskCache(
     const base::WeakPtr<Delegate>& delegate,
     const base::FilePath& backing_file_path,
     scoped_refptr<base::SequencedTaskRunner> background_task_runner)
     : delegate_(delegate),
       backing_file_path_(backing_file_path),
-      origin_task_runner_(base::MessageLoopProxy::current()),
-      background_task_runner_(background_task_runner) {}
+      origin_task_runner_(base::ThreadTaskRunnerHandle::Get()),
+      background_task_runner_(background_task_runner) {
+}
 
 void UserPolicyDiskCache::Load() {
   DCHECK(origin_task_runner_->RunsTasksOnCurrentThread());
   bool ret = background_task_runner_->PostTask(
       FROM_HERE, base::Bind(&UserPolicyDiskCache::LoadOnFileThread, this));
   DCHECK(ret);
 }
 
 void UserPolicyDiskCache::Store(
     const em::CachedCloudPolicyResponse& policy) {
@@ skipping 96 matching lines @@
                               kMetricPolicyStoreFailed,
                               policy::kMetricPolicySize);
     return;
   }
   UMA_HISTOGRAM_ENUMERATION(policy::kMetricPolicy,
                             kMetricPolicyStoreSucceeded,
                             policy::kMetricPolicySize);
 }
 
 }  // namespace policy