Add metric ACTION_WIFI_AUTO_SIGN_IN

Bug: 68031630
Test: Build
Change-Id: Ib5a9b5f41460cea4c865c7750a136f26d82208f0
diff --git a/proto/src/metrics_constants.proto b/proto/src/metrics_constants.proto
index 2e0f394..507852e 100644
--- a/proto/src/metrics_constants.proto
+++ b/proto/src/metrics_constants.proto
@@ -4754,6 +4754,11 @@
     // OS: P
     DIALOG_OEM_LOCK_INFO = 1238;
 
+    // ACTION: Settings > Wi-Fi > Click one network > Auto sign in
+    // CATEGORY: SETTINGS
+    // OS: P
+    ACTION_WIFI_AUTO_SIGN_IN = 1239;
+
     // Add new aosp constants above this line.
     // END OF AOSP CONSTANTS
   }