Cleanup: Remove unneeded base/file_util.h includes in base.

chrome/browser/media_galleries/fileapi/native_media_file_util_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 <set>
 #include <string>
 
 #include "base/bind.h"
+#include "base/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/format_macros.h"
 #include "base/message_loop.h"
 #include "base/stringprintf.h"
 #include "base/time.h"
 #include "chrome/browser/media_galleries/fileapi/media_file_system_mount_point_provider.h"
 #include "chrome/browser/media_galleries/fileapi/native_media_file_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webkit/fileapi/external_mount_points.h"
 #include "webkit/fileapi/file_system_context.h"
@@ skipping 625 matching lines @@
       expected_error = base::PLATFORM_FILE_ERROR_SECURITY;
     error = base::PLATFORM_FILE_ERROR_FAILED;
     operation->CreateSnapshotFile(url,
         base::Bind(CreateSnapshotCallback, &error));
     MessageLoop::current()->RunUntilIdle();
     ASSERT_EQ(expected_error, error);
   }
 }
 
 }  // namespace chrome