Teach URLRequest about initiator checks for First-Party-Only cookies.

content/browser/frame_host/navigation_request_info.cc

 // Copyright 2014 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/browser/frame_host/navigation_request_info.h"
 #include "content/common/service_worker/service_worker_types.h"
 
 namespace content {
 
 NavigationRequestInfo::NavigationRequestInfo(
     const CommonNavigationParams& common_params,
     const BeginNavigationParams& begin_params,
     const GURL& first_party_for_cookies,
+    const url::Origin& request_initiator,
     bool is_main_frame,
     bool parent_is_main_frame,
     int frame_tree_node_id,
     scoped_refptr<ResourceRequestBody> request_body)
     : common_params(common_params),
       begin_params(begin_params),
       first_party_for_cookies(first_party_for_cookies),
+      request_initiator(request_initiator),
       is_main_frame(is_main_frame),
       parent_is_main_frame(parent_is_main_frame),
       frame_tree_node_id(frame_tree_node_id),
       request_body(request_body) {}
 
 NavigationRequestInfo::~NavigationRequestInfo() {}
 
 }  // namespace content