Allow MimeHandlerViewGuest be embedded inside OOPIFs

components/guest_view/renderer/guest_view_request.cc

 // Copyright 2015 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 "components/guest_view/renderer/guest_view_request.h"
 
 #include <tuple>
 #include <utility>
 
 #include "components/guest_view/common/guest_view_messages.h"
@@ skipping 44 matching lines @@
     v8::Local<v8::Function> callback,
     v8::Isolate* isolate)
     : GuestViewRequest(container, callback, isolate),
       guest_instance_id_(guest_instance_id),
       params_(std::move(params)) {}
 
 GuestViewAttachRequest::~GuestViewAttachRequest() {
 }
 
 void GuestViewAttachRequest::PerformRequest() {
-  if (!container()->render_frame())
+  content::RenderFrame* render_frame = container()->render_frame();
+  if (!render_frame)
     return;
 
   // Step 1, send the attach params to guest_view/.
-  container()->render_frame()->Send(
-      new GuestViewHostMsg_AttachGuest(container()->element_instance_id(),
-                                       guest_instance_id_,
-                                       *params_));
+  render_frame->Send(new GuestViewHostMsg_AttachGuest(
+      container()->element_instance_id(), guest_instance_id_,
+      render_frame->GetRoutingID(), *params_));
 
   // Step 2, attach plugin through content/.
-  container()->render_frame()->AttachGuest(container()->element_instance_id());
+  render_frame->AttachGuest(container()->element_instance_id());
 }
 
 void GuestViewAttachRequest::HandleResponse(const IPC::Message& message) {
   // TODO(fsamuel): Rename this message so that it's apparent that this is a
   // response to GuestViewHostMsg_AttachGuest. Perhaps
   // GuestViewMsg_AttachGuest_ACK?
   GuestViewMsg_GuestAttached::Param param;
   if (!GuestViewMsg_GuestAttached::Read(&message, &param))
     return;
 
@@ skipping 40 matching lines @@
 
   container()->render_frame()->DetachGuest(container()->element_instance_id());
 }
 
 void GuestViewDetachRequest::HandleResponse(const IPC::Message& message) {
   DCHECK(message.type() == GuestViewMsg_GuestDetached::ID);
   ExecuteCallbackIfAvailable(0 /* argc */, nullptr);
 }
 
 }  // namespace guest_view