chrome: Cleanup class/struct forward declarations

chrome/browser/ui/webui/options/password_manager_handler.h

 // Copyright 2013 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_UI_WEBUI_OPTIONS_PASSWORD_MANAGER_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_PASSWORD_MANAGER_HANDLER_H_
 
 #include <stddef.h>
 
 #include <string>
 #include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "chrome/browser/ui/passwords/password_manager_presenter.h"
 #include "chrome/browser/ui/passwords/password_ui_view.h"
 #include "chrome/browser/ui/webui/options/options_ui.h"
 #include "components/password_manager/core/browser/import/password_importer.h"
 #include "components/prefs/pref_member.h"
 #include "ui/shell_dialogs/select_file_dialog.h"
 
-class PasswordManagerHandlerTest;
-
 namespace options {
 
 // The WebUI based PasswordUIView. Displays passwords in the web ui.
 class PasswordManagerHandler : public OptionsPageUIHandler,
                                public PasswordUIView,
                                public ui::SelectFileDialog::Listener {
  public:
   // Enumeration of different callers of SelectFile.
   enum FileSelectorCaller {
     IMPORT_FILE_SELECTED,
@@ skipping 96 matching lines @@
 
   // File picker to import/export file path.
   scoped_refptr<ui::SelectFileDialog> select_file_dialog_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordManagerHandler);
 };
 
 }  // namespace options
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_PASSWORD_MANAGER_HANDLER_H_