Stop compiling password infobar code on Mac.

chrome/browser/password_manager/password_manager_test_base.h

 // 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.
 
 #ifndef CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_MANAGER_TEST_BASE_H_
 #define CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_MANAGER_TEST_BASE_H_
 
 #include <memory>
 
 #include "base/macros.h"
-#include "base/memory/ref_counted.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/test/test_utils.h"
 
 namespace autofill {
 struct PasswordForm;
 }
 
 class NavigationObserver : public content::WebContentsObserver {
  public:
@@ skipping 129 matching lines @@
 
   // Accessors
   content::WebContents* WebContents();
   content::RenderViewHost* RenderViewHost();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PasswordManagerBrowserTestBase);
 };
 
 #endif  // CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_MANAGER_TEST_BASE_H_