Add basic support for CAPS exe

chrome/tools/crash_service/caps/return_codes.h

Index: chrome/tools/crash_service/caps/return_codes.h
diff --git a/chrome/tools/crash_service/caps/return_codes.h b/chrome/tools/crash_service/caps/return_codes.h
new file mode 100644
index 0000000000000000000000000000000000000000..c2da8806077b2ca60e35c4a01b281af073fef62b
--- /dev/null
+++ b/chrome/tools/crash_service/caps/return_codes.h
@@ -0,0 +1,20 @@
+// Copyright 2015 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_TOOLS_CRASH_SERVICE_CAPS_RETURN_CODES_H_
+#define CHROME_TOOLS_CRASH_SERVICE_CAPS_RETURN_CODES_H_
+
+namespace caps {
+// Exit codes for CAPS. Don't reorder these values.

[scottmg, 2015/02/01 19:55:35]

add new line above (or remove the one at the bottom)

[cpu_(ooo_6.6-7.5), 2015/02/03 02:44:58]

Done.

+enum ReturnCodes {

[scottmg, 2015/02/01 19:55:35]

ExitCodes (per your comment) seems like a better name (and RC->EC). I'd probably
go with EXIT_CODE_NORMAL_EXIT, ... as RC_ made me thing of "resource compiler"
initially.

[cpu_(ooo_6.6-7.5), 2015/02/03 02:44:58]

Done.

+  RC_NORMAL_EXIT = 0,
+  RC_EXISTING_INSTANCE,
+  RC_INIT_ERROR,
+  RC_LAST_CODE
+};
+
+}
+
+#endif  // CHROME_TOOLS_CRASH_SERVICE_CAPS_RETURN_CODES_H_
+