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

chrome/browser/ui/gtk/bookmarks/bookmark_menu_controller_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 "chrome/browser/ui/gtk/bookmarks/bookmark_menu_controller_gtk.h"
 
 #include <gtk/gtk.h>
 
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ skipping 112 matching lines @@
   context_menu_->Cancel();
 }
 
 void BookmarkMenuController::NavigateToMenuItem(
     GtkWidget* menu_item,
     WindowOpenDisposition disposition) {
   const BookmarkNode* node = GetNodeFromMenuItem(menu_item);
   DCHECK(node);
   DCHECK(page_navigator_);
   page_navigator_->OpenURL(OpenURLParams(
-      node->url(), GURL(), disposition,
+      node->url(), content::Referrer(), disposition,
       content::PAGE_TRANSITION_AUTO_BOOKMARK, false));
 }
 
 void BookmarkMenuController::BuildMenu(const BookmarkNode* parent,
                                        int start_child_index,
                                        GtkWidget* menu) {
   DCHECK(parent->empty() || start_child_index < parent->child_count());
 
   signals_.Connect(menu, "button-press-event",
                    G_CALLBACK(OnMenuButtonPressedOrReleasedThunk), this);
@@ skipping 214 matching lines @@
 }
 
 void BookmarkMenuController::OnMenuItemDragGet(
     GtkWidget* widget, GdkDragContext* context,
     GtkSelectionData* selection_data,
     guint target_type, guint time) {
   const BookmarkNode* node = bookmark_utils::BookmarkNodeForWidget(widget);
   bookmark_utils::WriteBookmarkToSelection(node, selection_data, target_type,
                                            profile_);
 }