Add base::Feature to protect password viewing on Android

components/password_manager/core/common/password_manager_features.cc

Index: components/password_manager/core/common/password_manager_features.cc
diff --git a/components/password_manager/core/common/password_manager_features.cc b/components/password_manager/core/common/password_manager_features.cc
index b0a58b28fdb50c03cf21ecd2970c3a9b5e0f98f4..849d7f7d2f485d0f39e0de9db1281f232b9d6b62 100644
--- a/components/password_manager/core/common/password_manager_features.cc
+++ b/components/password_manager/core/common/password_manager_features.cc
@@ -49,6 +49,12 @@ const base::Feature kProtectSyncCredentialOnReauth = {
 const base::Feature kPasswordImportExport = {"password-import-export",
                                              base::FEATURE_DISABLED_BY_DEFAULT};
 
+// Control whether users can view and copy passwords. This is only used for
+// Android, the desktop version of Chrome always allows users to view
+// passwords.
+const base::Feature kViewPasswords = {"view-passwords",
+                                      base::FEATURE_DISABLED_BY_DEFAULT};
+
 }  // namespace features
 
 }  // namespace password_manager