Revert of base: Remove use of MessageLoopProxy

base/files/file_util_proxy_unittest.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 "base/files/file_util_proxy.h"
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/weak_ptr.h"
+#include "base/message_loop/message_loop.h"
 #include "base/threading/thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 
 class FileUtilProxyTest : public testing::Test {
  public:
   FileUtilProxyTest()
       : file_thread_("FileUtilProxyTestFileThread"),
         error_(File::FILE_OK),
@@ skipping 11 matching lines @@
 
   void DidGetFileInfo(File::Error error,
                       const File::Info& file_info) {
     error_ = error;
     file_info_ = file_info;
     MessageLoop::current()->QuitWhenIdle();
   }
 
  protected:
   TaskRunner* file_task_runner() const {
-    return file_thread_.task_runner().get();
+    return file_thread_.message_loop_proxy().get();
   }
   const FilePath& test_dir_path() const { return dir_.path(); }
   const FilePath test_path() const { return dir_.path().AppendASCII("test"); }
 
   MessageLoopForIO message_loop_;
   Thread file_thread_;
 
   ScopedTempDir dir_;
   File::Error error_;
   FilePath path_;
@@ skipping 68 matching lines @@
 
   // The returned values may only have the seconds precision, so we cast
   // the double values to int here.
   EXPECT_EQ(static_cast<int>(last_modified_time.ToDoubleT()),
             static_cast<int>(info.last_modified.ToDoubleT()));
   EXPECT_EQ(static_cast<int>(last_accessed_time.ToDoubleT()),
             static_cast<int>(info.last_accessed.ToDoubleT()));
 }
 
 }  // namespace base