chrome: Refactor the way to show the feedback ui and move it into chrome namespace.

chrome/browser/ui/chrome_pages.h

 // Copyright (c) 2012 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_CHROME_PAGES_H_
 #define CHROME_BROWSER_UI_CHROME_PAGES_H_
 
+#include <string>
+
 #include "chrome/browser/ui/webui/sync_promo/sync_promo_ui.h"
 #include "chrome/common/content_settings_types.h"
 
 class Browser;
 
 namespace content {
 class WebContents;
 }
 
 namespace chrome {
@@ skipping 10 matching lines @@
   HELP_SOURCE_WEBUI,
 };
 
 
 void ShowBookmarkManager(Browser* browser);
 void ShowBookmarkManagerForNode(Browser* browser, int64 node_id);
 void ShowHistory(Browser* browser);
 void ShowDownloads(Browser* browser);
 void ShowExtensions(Browser* browser);
 void ShowConflicts(Browser* browser);
+void ShowFeedbackPage(Browser* browser,
+                      const std::string& description_template,
+                      const std::string& category_tag);
 
 void ShowHelp(Browser* browser, HelpSource source);
 
 // Various things that open in a settings UI.
 void ShowSettings(Browser* browser);
 void ShowSettingsSubPage(Browser* browser, const std::string& sub_page);
 void ShowContentSettings(Browser* browser,
                          ContentSettingsType content_settings_type);
 void ShowClearBrowsingDataDialog(Browser* browser);
 void ShowPasswordManager(Browser* browser);
 void ShowImportDialog(Browser* browser);
 void ShowInstantConfirmDialog(Browser* browser);
 void ShowAboutChrome(Browser* browser);
 void ShowSearchEngineSettings(Browser* browser);
 void ShowSyncSetup(Browser* browser, SyncPromoUI::Source source);
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_CHROME_PAGES_H_