[Passwords] Add UI Flag for Leak Detection

This change adds a UI flag for the password leak detection feature.

Bug: 986298
Change-Id: I0dde3c0afa4464bd97bd11c57b8fa7b5de7a8600
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1761605
Commit-Queue: Jan Wilken Dörrie <[email protected]>
Commit-Queue: Vasilii Sukhanov <[email protected]>
Auto-Submit: Jan Wilken Dörrie <[email protected]>
Reviewed-by: Vasilii Sukhanov <[email protected]>
Cr-Commit-Position: refs/heads/master@{#688512}
diff --git a/chrome/browser/flag_descriptions.h b/chrome/browser/flag_descriptions.h
index a9bc084..9d81576a 100644
--- a/chrome/browser/flag_descriptions.h
+++ b/chrome/browser/flag_descriptions.h
@@ -918,6 +918,9 @@
 extern const char kPasswordImportName[];
 extern const char kPasswordImportDescription[];
 
+extern const char kPasswordLeakDetectionName[];
+extern const char kPasswordLeakDetectionDescription[];
+
 extern const char kForceWebContentsDarkModeName[];
 extern const char kForceWebContentsDarkModeDescription[];