Re-added support for deprecated BIND_AUTOFILL permission.

This permission was renamed during the O previews but it was supported on the
final O release, so we need to carry it over.

Test: atest CtsAutoFillServiceTestCases
Bug: 70682223

Change-Id: I2b3d798fe9c09751138f154e6e69e6af6b60dbb1
diff --git a/proto/src/metrics_constants.proto b/proto/src/metrics_constants.proto
index 03dfd46..7539d88 100644
--- a/proto/src/metrics_constants.proto
+++ b/proto/src/metrics_constants.proto
@@ -5168,6 +5168,11 @@
     // OS: P
     ROTATION_SUGGESTION_SHOWN = 1288;
 
+    // An autofill service was bound using an unofficial(but still supported) permission.
+    // Package: Package of the autofill service
+    // OS: P
+    AUTOFILL_INVALID_PERMISSION = 1289;
+
     // ---- End P Constants, all P constants go above this line ----
     // Add new aosp constants above this line.
     // END OF AOSP CONSTANTS