MD Settings: fix chrome.passwordsPrivate empty list bug

chrome/browser/extensions/api/passwords_private/passwords_private_api.h

Index: chrome/browser/extensions/api/passwords_private/passwords_private_api.h
diff --git a/chrome/browser/extensions/api/passwords_private/passwords_private_api.h b/chrome/browser/extensions/api/passwords_private/passwords_private_api.h
index b8789f5aca453e4dffeb4dffbf777d2c7f60f9e9..196522b4472d7f1476663b67a1c0f04f2aaca734 100644
--- a/chrome/browser/extensions/api/passwords_private/passwords_private_api.h
+++ b/chrome/browser/extensions/api/passwords_private/passwords_private_api.h
@@ -79,6 +79,9 @@ class PasswordsPrivateGetSavedPasswordListFunction
   ResponseAction Run() override;
 
  private:
+  void GetList();
+  void GotList(const PasswordsPrivateDelegate::UiEntries* entries);
+
   DISALLOW_COPY_AND_ASSIGN(PasswordsPrivateGetSavedPasswordListFunction);
 };
 
@@ -96,6 +99,9 @@ class PasswordsPrivateGetPasswordExceptionListFunction
   ResponseAction Run() override;
 
  private:
+  void GetList();
+  void GotList(const PasswordsPrivateDelegate::ExceptionPairs* pairs);
+
   DISALLOW_COPY_AND_ASSIGN(PasswordsPrivateGetPasswordExceptionListFunction);
 };