Add COMMON value to the PpapiName enum

Bug: 303723966
Test: N/A

Change-Id: Ia26c1139ea644b291c87cc7212c2578fe776f53c
diff --git a/stats/enums/adservices/common/adservices_enums.proto b/stats/enums/adservices/common/adservices_enums.proto
index f343618..65e6d1a 100644
--- a/stats/enums/adservices/common/adservices_enums.proto
+++ b/stats/enums/adservices/common/adservices_enums.proto
@@ -318,6 +318,8 @@
   AD_ID = 4;
   APP_SET_ID = 5;
   UX = 6;
+  // Use COMMON enum when the error happens in the common code path.
+  COMMON = 7;
 }
 
 /**