Use content::Referrer to pass around referrers in the plugin code

content/renderer/npapi/webplugin_delegate_proxy.cc

 // 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.
 
 #include "content/renderer/npapi/webplugin_delegate_proxy.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/basictypes.h"
@@ skipping 1103 matching lines @@
   return proxy;
 }
 
 void WebPluginDelegateProxy::FetchURL(unsigned long resource_id,
                                       int notify_id,
                                       const GURL& url,
                                       const GURL& first_party_for_cookies,
                                       const std::string& method,
                                       const char* buf,
                                       unsigned int len,
-                                      const GURL& referrer,
+                                      const Referrer& referrer,
                                       bool notify_redirects,
                                       bool is_plugin_src_load,
                                       int origin_pid,
                                       int render_frame_id,
                                       int render_view_id) {
   PluginMsg_FetchURL_Params params;
   params.resource_id = resource_id;
   params.notify_id = notify_id;
   params.url = url;
   params.first_party_for_cookies = first_party_for_cookies;
   params.method = method;
   if (len) {
     params.post_data.resize(len);
     memcpy(&params.post_data.front(), buf, len);
   }
-  params.referrer = referrer;
+  params.referrer = referrer.url;
+  params.referrer_policy = referrer.policy;
   params.notify_redirect = notify_redirects;
   params.is_plugin_src_load = is_plugin_src_load;
   params.render_frame_id = render_frame_id;
   Send(new PluginMsg_FetchURL(instance_id_, params));
 }
 
 #if defined(OS_MACOSX)
 void WebPluginDelegateProxy::OnFocusChanged(bool focused) {
   if (render_view_)
     render_view_->PluginFocusChanged(focused, instance_id_);
@@ skipping 86 matching lines @@
 
   plugin_->URLRedirectResponse(allow, resource_id);
 }
 
 void WebPluginDelegateProxy::OnCheckIfRunInsecureContent(const GURL& url,
                                                          bool* result) {
   *result = plugin_->CheckIfRunInsecureContent(url);
 }
 
 }  // namespace content