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

content/browser/fileapi/local_file_stream_reader_unittest.cc

 // Copyright 2014 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/local_file_stream_reader.h"
 
 #include <string>
 
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
-#include "base/location.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
-#include "base/single_thread_task_runner.h"
 #include "base/threading/thread.h"
 #include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
 #include "net/base/test_completion_callback.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using storage::LocalFileStreamReader;
 
 namespace content {
 
@@ skipping 69 matching lines @@
   }
 
   void TouchTestFile() {
     base::Time new_modified_time =
         test_file_modification_time() - base::TimeDelta::FromSeconds(1);
     ASSERT_TRUE(base::TouchFile(test_path(),
                                 test_file_modification_time(),
                                 new_modified_time));
   }
 
-  base::SingleThreadTaskRunner* file_task_runner() const {
-    return file_thread_.task_runner().get();
+  base::MessageLoopProxy* file_task_runner() const {
+    return file_thread_.message_loop_proxy().get();
   }
 
   base::FilePath test_dir() const { return dir_.path(); }
   base::FilePath test_path() const { return dir_.path().AppendASCII("test"); }
   base::Time test_file_modification_time() const {
     return test_file_modification_time_;
   }
 
   void EnsureFileTaskFinished() {
     file_task_runner()->PostTaskAndReply(
@@ skipping 133 matching lines @@
   int rv = reader->Read(buf.get(), buf->size(), base::Bind(&NeverCalled));
   ASSERT_TRUE(rv == net::ERR_IO_PENDING || rv >= 0);
 
   // Delete immediately.
   // Should not crash; nor should NeverCalled be callback.
   reader.reset();
   EnsureFileTaskFinished();
 }
 
 }  // namespace content