Add a chrome cleanup tool exit code for zip archiver sandbox.

Add an exit code for zip archiver sandbox to report unexpected sandbox disconnection.

Bug: crbug.com/881988
Change-Id: Ib38a8cd85876fc8dc186e0c62a377f51d22f5ea2
Reviewed-on: https://chromium-review.googlesource.com/1216025Reviewed-by: Chris Sharp <csharp@chromium.org>
Commit-Queue: Che-yu Wu <cheyuw@google.com>
Cr-Commit-Position: refs/heads/master@{#590339}

components/chrome_cleaner/public/constants/result_codes.h

@@ -218,6 +218,10 @@ enum ResultCodeValues : ResultCode {
   // while the pipe was still needed by the broker process.
   RESULT_CODE_JSON_PARSER_SANDBOX_DISCONNECTED_TOO_SOON = 54,
 
+  // The target process for the zip archiver sandbox disconnected from the IPC
+  // while the pipe was still needed by the broker process.
+  RESULT_CODE_ZIP_ARCHIVER_SANDBOX_DISCONNECTED_TOO_SOON = 55,
+
   // WHEN YOU ADD NEW EXIT CODES, DON'T FORGET TO UPDATE THE MONITORING RULES.
   // See http://go/chrome-cleaner-exit-codes. (Google internal only - external
   // contributors please ask one of the OWNERS to do the update.)