Initialize PasswordReuseDetector on PasswordStore initialization on Mac.

chrome/browser/ui/passwords/manage_passwords_bubble_model_unittest.cc

 // Copyright 2014 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/ui/passwords/manage_passwords_bubble_model.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/memory/ptr_util.h"
@@ skipping 92 matching lines @@
 
   void SetUp() override {
     test_web_contents_.reset(
         content::WebContentsTester::CreateTestWebContents(&profile_, nullptr));
     mock_delegate_.reset(new testing::StrictMock<PasswordsModelDelegateMock>);
     PasswordStoreFactory::GetInstance()->SetTestingFactoryAndUse(
         profile(),
         password_manager::BuildPasswordStore<
             content::BrowserContext,
             testing::StrictMock<password_manager::MockPasswordStore>>);
-#if !defined(OS_MACOSX)
-    // TODO(crbug.com/668155): Remove conditional compilation when
-    // PasswordReuseDetector initialization will be implemented for Mac.
-    // The call of FillAutofillableLogins is caused by a posted task for an
-    // initialization of PasswordReuseDetector in the call of
-    // BuildPasswordStore() in the previous code. There is no thread race since
-    // unit tests run in one thread, and any post task will be executed after
-    // finishing the current function.
     EXPECT_CALL(*GetStore(), FillAutofillableLogins(_));
-#endif
   }
 
   void TearDown() override {
     // Reset the delegate first. It can happen if the user closes the tab.
     mock_delegate_.reset();
     model_.reset();
   }
 
   PrefService* prefs() { return profile_.GetPrefs(); }
 
@@ skipping 343 matching lines @@
 
   EXPECT_CALL(*controller(), NavigateToPasswordManagerSettingsPage());
 
   model()->OnManageLinkClicked();
 }
 
 INSTANTIATE_TEST_CASE_P(Default,
                         ManagePasswordsBubbleModelManageLinkTest,
                         ::testing::Values(TestSyncService::SyncedTypes::ALL,
                                           TestSyncService::SyncedTypes::NONE));