Implement new referrer policies

content/renderer/render_frame_impl.cc

 // Copyright 2013 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/render_frame_impl.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 397 matching lines @@
       IsBrowserSideNavigationEnabled() &&
               !request_params.original_method.empty()
           ? request_params.original_method
           : common_params.method;
   WebURLRequest request(navigation_url);
   request.SetHTTPMethod(WebString::FromUTF8(navigation_method));
 
   if (is_view_source_mode_enabled)
     request.SetCachePolicy(WebCachePolicy::kReturnCacheDataElseLoad);
 
+  WebString web_referrer;
   if (common_params.referrer.url.is_valid()) {
-    WebString web_referrer = WebSecurityPolicy::GenerateReferrerHeader(
+    web_referrer = WebSecurityPolicy::GenerateReferrerHeader(
         common_params.referrer.policy, common_params.url,
         WebString::FromUTF8(common_params.referrer.url.spec()));
+    request.SetHTTPReferrer(web_referrer, common_params.referrer.policy);
     if (!web_referrer.IsEmpty()) {
-      request.SetHTTPReferrer(web_referrer, common_params.referrer.policy);
       request.AddHTTPOriginIfNeeded(
           WebSecurityOrigin(url::Origin(common_params.referrer.url)));
     }
   }
 
+  if (!web_referrer.IsEmpty() ||
+      common_params.referrer.policy != blink::kWebReferrerPolicyDefault) {
+    request.SetHTTPReferrer(web_referrer, common_params.referrer.policy);
+  }
+
   request.SetIsSameDocumentNavigation(is_same_document_navigation);
   request.SetPreviewsState(
       static_cast<WebURLRequest::PreviewsState>(common_params.previews_state));
 
   RequestExtraData* extra_data = new RequestExtraData();
   extra_data->set_stream_override(std::move(stream_override));
   extra_data->set_navigation_initiated_by_renderer(
       request_params.nav_entry_id == 0);
   request.SetExtraData(extra_data);
 
@@ skipping 6408 matching lines @@
       policy(info.default_policy),
       replaces_current_history_item(info.replaces_current_history_item),
       history_navigation_in_new_child_frame(
           info.is_history_navigation_in_new_child_frame),
       client_redirect(info.is_client_redirect),
       cache_disabled(info.is_cache_disabled),
       form(info.form),
       source_location(info.source_location) {}
 
 }  // namespace content