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 48e19539ceea61c21e7d0199d92984a77e081159..7986e77235e2bf455e0cf47f9274da287d1459c1 100644
--- a/chrome/browser/password_manager/native_backend_kwallet_x.cc
+++ b/chrome/browser/password_manager/native_backend_kwallet_x.cc
@@ -273,9 +273,9 @@ 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);