Add a Certificate Viewer link to the Page Info dropdown

chrome/browser/ui/page_info/page_info_ui.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_PAGE_INFO_PAGE_INFO_UI_H_
 #define CHROME_BROWSER_UI_PAGE_INFO_PAGE_INFO_UI_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 166 matching lines @@
   // Returns the identity icon for the given identity |status|.
   static const gfx::Image& GetIdentityIcon(PageInfo::SiteIdentityStatus status);
 
   // Returns the connection icon ID for the given connection |status|.
   static int GetConnectionIconID(PageInfo::SiteConnectionStatus status);
 
   // Returns the connection icon for the given connection |status|.
   static const gfx::Image& GetConnectionIcon(
       PageInfo::SiteConnectionStatus status);
 
+  // Returns the icon for the Certificate area.
+  static const gfx::Image& GetCertificateIcon();
+
   // Sets cookie information.
   virtual void SetCookieInfo(const CookieInfoList& cookie_info_list) = 0;
 
   // Sets permission information.
   virtual void SetPermissionInfo(
       const PermissionInfoList& permission_info_list,
       ChosenObjectInfoList chosen_object_info_list) = 0;
 
   // Sets site identity information.
   virtual void SetIdentityInfo(const IdentityInfo& identity_info) = 0;
 };
 
 typedef PageInfoUI::CookieInfoList CookieInfoList;
 typedef PageInfoUI::PermissionInfoList PermissionInfoList;
 typedef PageInfoUI::ChosenObjectInfoList ChosenObjectInfoList;
 
 #endif  // CHROME_BROWSER_UI_PAGE_INFO_PAGE_INFO_UI_H_