Remove groups handling from password manager metrics util

chrome/browser/password_manager/save_password_infobar_delegate_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/password_manager/save_password_infobar_delegate.h"
 
 #include <string>
 #include <utility>
 
 #include "base/macros.h"
@@ skipping 31 matching lines @@
 };
 
 class TestSavePasswordInfobarDelegate : public SavePasswordInfoBarDelegate {
  public:
   TestSavePasswordInfobarDelegate(
       content::WebContents* web_contents,
       scoped_ptr<password_manager::PasswordFormManager> form_to_save,
       bool should_show_first_run_experience)
       : SavePasswordInfoBarDelegate(web_contents,
                                     std::move(form_to_save),
-                                    std::string(),
                                     true /* is_smartlock_branding_enabled */,
                                     should_show_first_run_experience) {}
 
   ~TestSavePasswordInfobarDelegate() override {}
 };
 
 }  // namespace
 
 class SavePasswordInfoBarDelegateTest : public ChromeRenderViewHostTestHarness {
  public:
@@ skipping 101 matching lines @@
       password_manager::prefs::kWasSavePrompFirstRunExperienceShown, false);
   scoped_ptr<MockPasswordFormManager> password_form_manager(
       CreateMockFormManager());
   scoped_ptr<ConfirmInfoBarDelegate> infobar(
       CreateDelegate(std::move(password_form_manager), false));
   EXPECT_TRUE(infobar->Cancel());
   infobar.reset();
   EXPECT_FALSE(prefs()->GetBoolean(
       password_manager::prefs::kWasSavePrompFirstRunExperienceShown));
 }