Remove use of deprecated MessageLoop methods in content.

content/browser/fileapi/file_system_dir_url_request_job_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 <stdint.h>
 #include <string>
 #include <utility>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/format_macros.h"
 #include "base/location.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
 #include "base/run_loop.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/string_piece.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "build/build_config.h"
 #include "content/public/test/mock_special_storage_policy.h"
 #include "content/public/test/test_file_system_backend.h"
 #include "content/public/test/test_file_system_context.h"
 #include "net/base/net_errors.h"
 #include "net/base/request_priority.h"
 #include "net/http/http_request_headers.h"
@@ skipping 334 matching lines @@
   TestRequest(CreateFileSystemURL("somedir/"));
   ASSERT_FALSE(request_->is_pending());
   ASSERT_FALSE(request_->status().is_success());
   EXPECT_EQ(net::ERR_FILE_NOT_FOUND, request_->status().error());
 }
 
 TEST_F(FileSystemDirURLRequestJobTest, Cancel) {
   CreateDirectory("foo");
   TestRequestNoRun(CreateFileSystemURL("foo/"));
   // Run StartAsync() and only StartAsync().
-  base::MessageLoop::current()->DeleteSoon(FROM_HERE, request_.release());
+  base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE,
+                                                  request_.release());
   base::RunLoop().RunUntilIdle();
   // If we get here, success! we didn't crash!
 }
 
 TEST_F(FileSystemDirURLRequestJobTest, Incognito) {
   CreateDirectory("foo");
 
   scoped_refptr<FileSystemContext> file_system_context =
       CreateIncognitoFileSystemContextForTesting(NULL, temp_dir_.path());
 
@@ skipping 71 matching lines @@
   ASSERT_FALSE(request_->status().is_success());
   EXPECT_EQ(net::ERR_FILE_NOT_FOUND, request_->status().error());
 
   ASSERT_FALSE(
       storage::ExternalMountPoints::GetSystemInstance()->RevokeFileSystem(
           kValidExternalMountPoint));
 }
 
 }  // namespace
 }  // namespace content