When switching processes during redirects, update the cookie policy

content/browser/loader/resource_loader.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/resource_loader.h"
 
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/time/time.h"
@@ skipping 137 matching lines @@
     if (request_->load_flags() & net::LOAD_ENABLE_UPLOAD_PROGRESS) {
       handler_->OnUploadProgress(
           info->GetRequestID(), progress.position(), progress.size());
       waiting_for_upload_progress_ack_ = true;
     }
     last_upload_ticks_ = TimeTicks::Now();
     last_upload_position_ = progress.position();
   }
 }
 
-void ResourceLoader::MarkAsTransferring() {
+void ResourceLoader::MarkAsTransferring(const GURL& target_url) {
+  CHECK_EQ(GetRequestInfo()->GetResourceType(), ResourceType::MAIN_FRAME)
+      << "Cannot transfer non-main frame navigations";
   is_transferring_ = true;
 
+  // When transferring a request to another process, the renderer doesn't get
+  // a chance to update the cookie policy URL. Do it here instead.
+  request()->set_first_party_for_cookies(target_url);
+
   // When an URLRequest is transferred to a new RenderViewHost, its
   // ResourceHandler should not receive any notifications because it may depend
   // on the state of the old RVH. We set a ResourceHandler that only allows
   // canceling requests, because on shutdown of the RDH all pending requests
   // are canceled. The RVH of requests that are being transferred may be gone
   // by that time. In CompleteTransfer, the ResoureHandlers are substituted
   // again.
   handler_.reset(new DoomedResourceHandler(handler_.Pass()));
 }
 
@@ skipping 489 matching lines @@
     // we resume.
     deferred_stage_ = DEFERRED_FINISH;
   }
 }
 
 void ResourceLoader::CallDidFinishLoading() {
   delegate_->DidFinishLoading(this);
 }
 
 }  // namespace content