mini_installer code cleanups (no functional changes).

chrome/installer/mini_installer/exit_code.h

Index: chrome/installer/mini_installer/exit_code.h
diff --git a/chrome/installer/mini_installer/exit_code.h b/chrome/installer/mini_installer/exit_code.h
new file mode 100644
index 0000000000000000000000000000000000000000..98b382080f6fac6fb18cd1b14e106392c36f0b4a
--- /dev/null
+++ b/chrome/installer/mini_installer/exit_code.h
@@ -0,0 +1,21 @@
+// 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.
+
+#ifndef CHROME_INSTALLER_MINI_INSTALLER_EXIT_CODE_H_
+#define CHROME_INSTALLER_MINI_INSTALLER_EXIT_CODE_H_
+
+namespace mini_installer {
+
+// mini_installer process exit codes (the underlying type is uint32_t).
+enum ExitCode {
+  SUCCESS_EXIT_CODE = 0,
+  GENERIC_ERROR = 1,
+  GENERIC_INITIALIZATION_FAILURE = 101,

[gab, 2014/07/07 13:45:01]

Why is there a gap here? Add a comment above stating where new codes should go
given it doesn't look like a strictly incremental list of exit codes.

[grt (UTC plus 2), 2014/07/07 14:24:06]

Done.

+  GENERIC_UNPACKING_FAILURE = 102,
+  GENERIC_SETUP_FAILURE = 103,
+};
+
+}  // namespace mini_installer
+
+#endif  // CHROME_INSTALLER_MINI_INSTALLER_EXIT_CODE_H_