Refactor and fix feedback

chrome/browser/ui/webui/bug_report_ui.h

-// Copyright (c) 2011 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_BUG_REPORT_UI_H_
-#define CHROME_BROWSER_UI_WEBUI_BUG_REPORT_UI_H_
-
-#include <string>
-
-#include "chrome/browser/ui/webui/html_dialog_ui.h"
-
-class Browser;
-class TabContents;
-
-namespace browser {
-void ShowHtmlBugReportView(Browser* browser,
-                           const std::string& description_template,
-                           size_t issue_type);
-}  // namespace browser
-
-class BugReportUI : public HtmlDialogUI {
- public:
-  explicit BugReportUI(TabContents* contents);
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(BugReportUI);
-};
-
-#endif  // CHROME_BROWSER_UI_WEBUI_BUG_REPORT_UI_H_