GuestView: Fix message routing across embedder navigations

extensions/renderer/guest_view/extensions_guest_view_container.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 "extensions/renderer/guest_view/extensions_guest_view_container.h"
 
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_view.h"
 #include "extensions/common/guest_view/guest_view_constants.h"
 #include "extensions/common/guest_view/guest_view_messages.h"
@@ skipping 44 matching lines @@
 
 ExtensionsGuestViewContainer::AttachRequest::~AttachRequest() {
 }
 
 void ExtensionsGuestViewContainer::AttachRequest::PerformRequest() {
   if (!container()->render_frame())
     return;
 
   // Step 1, send the attach params to extensions/.
   container()->render_frame()->Send(
-      new GuestViewHostMsg_AttachGuest(container()->render_view_routing_id(),
-                                       container()->element_instance_id(),
+      new GuestViewHostMsg_AttachGuest(container()->element_instance_id(),
                                        guest_instance_id_,
                                        *params_));
 
   // Step 2, attach plugin through content/.
   container()->render_frame()->AttachGuest(container()->element_instance_id());
 }
 
 void ExtensionsGuestViewContainer::AttachRequest::HandleResponse(
     const IPC::Message& message) {
   GuestViewMsg_GuestAttached::Param param;
@@ skipping 172 matching lines @@
 }
 
 void ExtensionsGuestViewContainer::HandlePendingResponseCallback(
     const IPC::Message& message) {
   CHECK(pending_response_.get());
   linked_ptr<Request> pending_response(pending_response_.release());
   pending_response->HandleResponse(message);
 }
 
 }  // namespace extensions