Plumb the referrer throughout the OpenURL APIs....

chrome/browser/web_contents.cc

 // Copyright (c) 2006-2008 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/web_contents.h"
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/file_version_info.h"
 #include "base/process_util.h"
@@ skipping 958 matching lines @@
   // request. If we end up with another place invoking DownloadImage, probably
   // best to refactor out into notification service, or something similar.
   if (errored)
     fav_icon_helper_.FavIconDownloadFailed(id);
   else
     fav_icon_helper_.SetFavIcon(id, image_url, image);
   if (web_app_.get() && !errored)
     web_app_->SetImage(image_url, image);
 }
 
-void WebContents::RequestOpenURL(const GURL& url,
+void WebContents::RequestOpenURL(const GURL& url, const GURL& referrer,
                                  WindowOpenDisposition disposition) {
-  OpenURL(url, disposition, PageTransition::LINK);
+  OpenURL(url, referrer, disposition, PageTransition::LINK);
 }
 
 void WebContents::DomOperationResponse(const std::string& json_string,
                                        int automation_id) {
   DomOperationNotificationDetails details(json_string, automation_id);
   NotificationService::current()->Notify(
       NOTIFY_DOM_OPERATION_RESPONSE, Source<WebContents>(this),
       Details<DomOperationNotificationDetails>(&details));
 }
 
@@ skipping 758 matching lines @@
     // The favicon url isn't valid. This means there really isn't a favicon,
     // or the favicon url wasn't obtained before the load started. This assumes
     // the later.
     // TODO(sky): Need a way to set the favicon that doesn't involve generating
     // its url.
     new_url->SetFavIconURL(TemplateURL::GenerateFaviconURL(params.referrer));
   }
   new_url->set_safe_for_autoreplace(true);
   url_model->Add(new_url);
 }