add parse_error metric definition

Add Cobalt definition for the parse_error metric for FTS.

Bug: 41856
Test: fx build
Change-Id: I688bab246951748389246d2fe0ed325c8526233c
diff --git a/fuchsia/flash_ts/metrics.yaml b/fuchsia/flash_ts/metrics.yaml
index e2e3d7a..c9cc430 100644
--- a/fuchsia/flash_ts/metrics.yaml
+++ b/fuchsia/flash_ts/metrics.yaml
@@ -115,3 +115,49 @@
   meta_data:
     max_release_stage: GA
     expiration_date: "2021/01/21"
+
+#####################################################################
+# parse_error
+#
+# Count of times we encountered errors parsing FTS data. This metric
+# is primarily intended to help debug parsing problems. However, it
+# may be affected by I/O and storage problems as well.
+#
+# Reporting frequency
+# * For most devices, this event should never be reported.
+# * For devices with corrupt flash memory, or devices that were
+#   programmed incorrectly at the factory, every time flash_ts
+#   starts, the program will log each observed parse error once.
+#   (We may encounter multiple kinds of errors, because devices may
+#   have multiple copies of the FTS data.)
+#####################################################################
+- id: 4
+  metric_name: parse_error
+  metric_type: EVENT_OCCURRED
+  metric_dimensions:
+    - dimension: result
+      event_codes:
+        0: ShortChunk
+        1: BlankChunk
+        2: BadHeader
+        3: BadPayloadLen
+        4: BadChecksum
+        5: BadProperties
+        6: MissingTerminator
+        7: BadPadding
+        8: BadTableVersionNum
+      max_event_code: 8
+  reports:
+      #####################################################################
+      # parse_error_counts
+      #
+      # Count of each of the types of parse_error occurrences.
+      #####################################################################
+    - report_name: parse_error_counts
+      id: 1
+      report_type: SIMPLE_OCCURRENCE_COUNT
+      local_privacy_noise_level: NONE
+      system_profile_field: [BOARD_NAME, PRODUCT_NAME, SYSTEM_VERSION, CHANNEL]
+  meta_data:
+    max_release_stage: GA
+    expiration_date: "2021/01/21"