Replace the GURL referrer field of OpenURLParams with a content::Referrer

chrome/browser/ui/gtk/page_info_bubble_gtk.cc

 // 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.
 
 #include <gtk/gtk.h>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/i18n/rtl.h"
 #include "base/utf_string_conversions.h"
@@ skipping 211 matching lines @@
 void PageInfoBubbleGtk::OnViewCertLinkClicked(GtkWidget* widget) {
   ShowCertificateViewerByID(GTK_WINDOW(parent_), cert_id_);
   bubble_->Close();
 }
 
 void PageInfoBubbleGtk::OnHelpLinkClicked(GtkWidget* widget) {
   GURL url = google_util::AppendGoogleLocaleParam(
       GURL(chrome::kPageInfoHelpCenterURL));
   Browser* browser = BrowserList::GetLastActiveWithProfile(profile_);
   browser->OpenURL(OpenURLParams(
-      url, GURL(), NEW_FOREGROUND_TAB, content::PAGE_TRANSITION_LINK, false));
+      url, content::Referrer(), NEW_FOREGROUND_TAB,
+      content::PAGE_TRANSITION_LINK, false));
   bubble_->Close();
 }
 
 }  // namespace
 
 namespace browser {
 
 void ShowPageInfoBubble(gfx::NativeWindow parent,
                         Profile* profile,
                         const GURL& url,
                         const NavigationEntry::SSLStatus& ssl,
                         bool show_history) {
   new PageInfoBubbleGtk(parent, profile, url, ssl, show_history);
 }
 
 }  // namespace browser