[FedCM] Allow configUrl not being in the well-known file behind a flag

Change-Id: I44e27f5696923e0517880d07b49352467a3eeb66
Bug: 1458588
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4655843
Reviewed-by: Christian Biesinger <[email protected]>
Commit-Queue: Yi Gu <[email protected]>
Auto-Submit: Yi Gu <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1164328}
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index c339976..5e434be9 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -1627,7 +1627,7 @@
 const char kFedCmWithoutWellKnownEnforcementName[] =
     "FedCmWithoutWellKnownEnforcement";
 const char kFedCmWithoutWellKnownEnforcementDescription[] =
-    "Allows multiple provider urls in IdP's .well-known file.";
+    "Supports configURL that's not in the IdP's .well-known file.";
 
 const char kFedCmIdpSigninStatusName[] = "FedCmIdpSigninStatus";
 const char kFedCmIdpSigninStatusDescription[] =