Rename Origin.unique() to opaque().

chrome/browser/password_manager/native_backend_kwallet_x.cc

Index: chrome/browser/password_manager/native_backend_kwallet_x.cc
diff --git a/chrome/browser/password_manager/native_backend_kwallet_x.cc b/chrome/browser/password_manager/native_backend_kwallet_x.cc
index b797ad0219c5705b25fc7ab43323e2e8bd5b87d3..ee932cd25c3a7390624e85f1411fdb60da4090e5 100644
--- a/chrome/browser/password_manager/native_backend_kwallet_x.cc
+++ b/chrome/browser/password_manager/native_backend_kwallet_x.cc
@@ -272,9 +272,9 @@ void SerializeValue(const std::vector<std::unique_ptr<PasswordForm>>& forms,
     pickle->WriteInt64(form->date_synced.ToInternalValue());
     pickle->WriteString16(form->display_name);
     pickle->WriteString(form->icon_url.spec());
-    // We serialize unique origins as "", in order to make other systems that
+    // We serialize opaque origins as "", in order to make other systems that
     // read from the login database happy. https://crbug.com/591310
-    pickle->WriteString(form->federation_origin.unique()
+    pickle->WriteString(form->federation_origin.opaque()
                             ? std::string()
                             : form->federation_origin.Serialize());
     pickle->WriteBool(form->skip_zero_click);