Move first-party cookie URL logic to browser process.

content/browser/loader/cross_site_resource_handler.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/browser/loader/cross_site_resource_handler.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 103 matching lines @@
 CrossSiteResourceHandler::~CrossSiteResourceHandler() {
   // Cleanup back-pointer stored on the request info.
   GetRequestInfo()->set_cross_site_handler(NULL);
 }
 
 bool CrossSiteResourceHandler::OnRequestRedirected(
     int request_id,
     const GURL& new_url,
     ResourceResponse* response,
     bool* defer) {
+  // Top-level requests change their cookie first-party URL on redirects, while
+  // subframes retain the parent's value.
+  if (GetRequestInfo()->GetResourceType() == ResourceType::MAIN_FRAME)
+    request()->set_first_party_for_cookies(new_url);
+
   // We should not have started the transition before being redirected.
   DCHECK(!in_cross_site_transition_);
   return next_handler_->OnRequestRedirected(
       request_id, new_url, response, defer);
 }
 
 bool CrossSiteResourceHandler::OnResponseStarted(
     int request_id,
     ResourceResponse* response,
     bool* defer) {
@@ skipping 244 matching lines @@
     controller()->Resume();
   }
 }
 
 void CrossSiteResourceHandler::OnDidDefer() {
   did_defer_ = true;
   request()->LogBlockedBy("CrossSiteResourceHandler");
 }
 
 }  // namespace content