Add a Certificate Viewer link to the Page Info dropdown

chrome/browser/ui/page_info/page_info_ui.h

Index: chrome/browser/ui/page_info/page_info_ui.h
diff --git a/chrome/browser/ui/page_info/page_info_ui.h b/chrome/browser/ui/page_info/page_info_ui.h
index 391f52861f5668675953c6dcc17b935b71b1ae8f..959dfd4bf68e8e64db682b0c49733a20f063b360 100644
--- a/chrome/browser/ui/page_info/page_info_ui.h
+++ b/chrome/browser/ui/page_info/page_info_ui.h
@@ -15,6 +15,10 @@
 #include "components/content_settings/core/common/content_settings_types.h"
 #include "ui/gfx/native_widget_types.h"
 
+#if !defined(OS_ANDROID)
+#include "ui/gfx/image/image_skia.h"
+#endif
+
 class GURL;
 class Profile;
 class PageInfo;
@@ -195,6 +199,14 @@ class PageInfoUI {
   static const gfx::Image& GetConnectionIcon(
       PageInfo::SiteConnectionStatus status);
 
+#if !defined(OS_ANDROID)
+  // Returns the icon for the Certificate area.
+  static const gfx::ImageSkia GetCertificateIcon();
+#endif
+
+  // Returns true if the Certificate Viewer link should be shown.
+  static bool ShouldShowCertificateLink();
+
   // Sets cookie information.
   virtual void SetCookieInfo(const CookieInfoList& cookie_info_list) = 0;