bug 1763225: add throttle rule to raw crash metadata

This adds the throttle rule that caused the crash to be accepted to the
raw crash metadata. This lets us debug things down the road.

antenna/breakpad_resource.py

@@ -362,7 +362,7 @@ def on_post(self, req, resp):
             )
             raw_crash["uuid"] = crash_id
 
-        # Log the throttle result
+        # Log throttle result and add to raw crash
         logger.info(
             "%s: matched by %s; returned %s",
             crash_id,
@@ -373,6 +373,7 @@ def on_post(self, req, resp):
         mymetrics.incr(
             "throttle", tags=["result:%s" % RESULT_TO_TEXT[throttle_result].lower()]
         )
+        raw_crash["metadata"]["throttle_rule"] = rule_name
 
         # If the result is REJECT, then discard it
         if throttle_result is REJECT:

tests/unittest/test_fs_crashstorage.py

@@ -80,7 +80,8 @@ def nix_tmpdir(fn):
             + b'"dump_checksums": '
             + b'{"upload_file_minidump": "e9cee71ab932fde863338d08be4de9dfe39ea049bdafb342ce659ec5450b69ae"}, '
             + b'"payload": "multipart", '
-            + b'"payload_compressed": "0"'
+            + b'"payload_compressed": "0", '
+            + b'"throttle_rule": "accept_everything"'
             + b"}, "
             + b'"submitted_timestamp": "2011-09-06T00:00:00+00:00", '
             + b'"uuid": "de1bb258-cbbf-4589-a673-34f800160918", '