MD Settings: fix chrome.passwordsPrivate empty list bug

chrome/browser/extensions/api/passwords_private/passwords_private_apitest.cc

Index: chrome/browser/extensions/api/passwords_private/passwords_private_apitest.cc
diff --git a/chrome/browser/extensions/api/passwords_private/passwords_private_apitest.cc b/chrome/browser/extensions/api/passwords_private/passwords_private_apitest.cc
index 7ec270b1d330c3a7e303fd8ae31fc17711805a05..6ab38ffe1239b855a3749e30661def2a14b119f8 100644
--- a/chrome/browser/extensions/api/passwords_private/passwords_private_apitest.cc
+++ b/chrome/browser/extensions/api/passwords_private/passwords_private_apitest.cc
@@ -77,9 +77,8 @@ class TestDelegate : public PasswordsPrivateDelegate {
       router->OnSavedPasswordsListChanged(current_entries_);
   }
 
-  const std::vector<api::passwords_private::PasswordUiEntry>*
-  GetSavedPasswordsList() const override {
-    return &current_entries_;
+  void GetSavedPasswordsList(const UiEntriesCallback& callback) override {
+    callback.Run(current_entries_);
   }
 
   void SendPasswordExceptionsList() override {
@@ -89,9 +88,9 @@ class TestDelegate : public PasswordsPrivateDelegate {
       router->OnPasswordExceptionsListChanged(current_exceptions_);
   }
 
-  const std::vector<api::passwords_private::ExceptionPair>*
-  GetPasswordExceptionsList() const override {
-    return &current_exceptions_;
+  void GetPasswordExceptionsList(
+      const ExceptionPairsCallback& callback) override {
+    callback.Run(current_exceptions_);
   }
 
   void RemoveSavedPassword(