Added read-only file error test.

base/test/test_file_util.h

Index: base/test/test_file_util.h
diff --git a/base/test/test_file_util.h b/base/test/test_file_util.h
index ce0b30259371cd845ab90d45f592a395cb82b5da..3bfd1df5c24ed048dcb273a6ea7ce518f726c68b 100644
--- a/base/test/test_file_util.h
+++ b/base/test/test_file_util.h
@@ -11,6 +11,7 @@
 #include <string>
 
 #include "base/compiler_specific.h"
+#include "base/file_path.h"
 
 class FilePath;
 
@@ -56,6 +57,18 @@ FilePath WStringAsFilePath(const std::wstring& path);
 bool MakeFileUnreadable(const FilePath& path) WARN_UNUSED_RESULT;
 bool MakeFileUnwritable(const FilePath& path) WARN_UNUSED_RESULT;
 
+// Saves the current permissions for a path, and restores it on destruction.
+class PermissionRestorer {
+public:

[Paweł Hajdan Jr., 2012/02/28 07:55:55]

nit: indent +1

[ahendrickson, 2012/03/01 15:18:19]

Visual Studio strikes again!! $-)

Fixed.

+  explicit PermissionRestorer(const FilePath& path);
+  ~PermissionRestorer();
+
+private:

[Paweł Hajdan Jr., 2012/02/28 07:55:55]

nit: indent +1

[ahendrickson, 2012/03/01 15:18:19]

Done.

+  const FilePath path_;
+  void* info_;

[Paweł Hajdan Jr., 2012/02/28 07:55:55]

nit: Comment those things, at least |info_| and |length_| are not obvious.

[ahendrickson, 2012/03/01 15:18:19]

Done.

+  size_t length_;

[Paweł Hajdan Jr., 2012/02/28 07:55:55]

nit: DISALLOW_COPY_AND_ASSIGN

[ahendrickson, 2012/03/01 15:18:19]

Done.

+};
+
 }  // namespace file_util
 
 #endif  // BASE_TEST_TEST_FILE_UTIL_H_