Replace WebUI::tab_contents() with web_contents() and switch all users to use web_contents.h inst...

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);
+  explicit BugReportUI(content::WebContents* contents);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BugReportUI);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_BUG_REPORT_UI_H_