Revert "content: Remove use of MessageLoopProxy and deprecated MessageLoop APIs"

content/browser/fileapi/recursive_operation_delegate_unittest.cc

 // Copyright 2013 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 "storage/browser/fileapi/recursive_operation_delegate.h"
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/scoped_temp_dir.h"
-#include "base/location.h"
+#include "base/message_loop/message_loop.h"
+#include "base/message_loop/message_loop_proxy.h"
 #include "base/run_loop.h"
-#include "base/single_thread_task_runner.h"
-#include "base/thread_task_runner_handle.h"
 #include "content/public/test/sandbox_file_system_test_helper.h"
 #include "storage/browser/fileapi/file_system_file_util.h"
 #include "storage/browser/fileapi/file_system_operation.h"
 #include "storage/browser/fileapi/file_system_operation_runner.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using storage::FileSystemContext;
 using storage::FileSystemOperationContext;
 using storage::FileSystemURL;
 
@@ skipping 82 matching lines @@
                   base::File::Error error) {
   DCHECK(out_error);
   *out_error = error;
 }
 
 // To test the Cancel() during operation, calls Cancel() of |operation|
 // after |counter| times message posting.
 void CallCancelLater(storage::RecursiveOperationDelegate* operation,
                      int counter) {
   if (counter > 0) {
-    base::ThreadTaskRunnerHandle::Get()->PostTask(
+    base::MessageLoopProxy::current()->PostTask(
         FROM_HERE,
         base::Bind(&CallCancelLater, base::Unretained(operation), counter - 1));
     return;
   }
 
   operation->Cancel();
 }
 
 }  // namespace
 
@@ skipping 140 matching lines @@
           base::Bind(&ReportStatus, &error)));
   operation->RunRecursively();
 
   // Invoke Cancel(), after 5 times message posting.
   CallCancelLater(operation.get(), 5);
   base::RunLoop().RunUntilIdle();
   ASSERT_EQ(base::File::FILE_ERROR_ABORT, error);
 }
 
 }  // namespace content