Add logging constants for setting build number preference.

Change-Id: I79ab6c89ec67e464167a96cf4350d8628bacbd91
Fix: 34774945
Test: Builds
diff --git a/proto/src/metrics_constants.proto b/proto/src/metrics_constants.proto
index c7f518c..c1c385a 100644
--- a/proto/src/metrics_constants.proto
+++ b/proto/src/metrics_constants.proto
@@ -3466,6 +3466,12 @@
     // OS: O
     ENCRYPTION_AND_CREDENTIAL = 846;
 
+    // ACTION: Settings > About device > Build number
+    ACTION_SETTINGS_BUILD_NUMBER_PREF = 847;
+
+    // FIELD: Whether developer mode has already been enabled when clicking build number preference
+    FIELD_SETTINGS_BUILD_NUMBER_DEVELOPER_MODE_ENABLED = 848;
+
     // ---- End O Constants, all O constants go above this line ----
 
     // Add new aosp constants above this line.