Forwarding POST body into renderer after a cross-site transfer.

content/browser/frame_host/render_frame_proxy_host.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/render_frame_proxy_host.h"
 
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "content/browser/bad_message.h"
@@ skipping 233 matching lines @@
   RenderFrameHostImpl* current_rfh = frame_tree_node_->current_frame_host();
   if (!site_instance_->IsRelatedSiteInstance(current_rfh->GetSiteInstance()))
     return;
 
   // Since this navigation targeted a specific RenderFrameProxy, it should stay
   // in the current tab.
   DCHECK_EQ(CURRENT_TAB, params.disposition);
 
   // TODO(alexmos, creis): Figure out whether |params.user_gesture| needs to be
   // passed in as well.
+  // TODO(lukasza): https://crbug.com/344348: Plumb through POST data
+  // (and a non-null NavigationHandle?).

[clamy, 2016/05/19 16:08:00]

See my comment in RequestTransferURL in favor of not passing the
NavigationHandle but the post data and method directly. We should not
instantiate a NavigationHandle here (there are some timing issues with doing
it).

[Łukasz Anforowicz, 2016/05/19 18:06:59]

Done.

   frame_tree_node_->navigator()->RequestTransferURL(
       current_rfh, validated_url, site_instance_.get(), std::vector<GURL>(),
       params.referrer, ui::PAGE_TRANSITION_LINK, GlobalRequestID(),
-      params.should_replace_current_entry);
+      params.should_replace_current_entry, nullptr);
 }
 
 void RenderFrameProxyHost::OnRouteMessageEvent(
     const FrameMsg_PostMessage_Params& params) {
   RenderFrameHostImpl* target_rfh = frame_tree_node()->current_frame_host();
 
   // Only deliver the message if the request came from a RenderFrameHost in the
   // same BrowsingInstance or if this WebContents is dedicated to a browser
   // plugin guest.
   //
@@ skipping 90 matching lines @@
   target_rfh->Send(new FrameMsg_AdvanceFocus(target_rfh->GetRoutingID(), type,
                                              source_proxy_routing_id));
 }
 
 void RenderFrameProxyHost::OnFrameFocused() {
   frame_tree_node_->frame_tree()->SetFocusedFrame(frame_tree_node_,
                                                   GetSiteInstance());
 }
 
 }  // namespace content