Removes the references to shared workers from the all documents in being deleted frames

content/browser/shared_worker/shared_worker_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/shared_worker/shared_worker_host.h"
 
 #include "base/metrics/histogram.h"
 #include "content/browser/devtools/shared_worker_devtools_manager.h"
 #include "content/browser/message_port_message_filter.h"
 #include "content/browser/message_port_service.h"
@@ skipping 114 matching lines @@
   if (!instance_)
     return;
   // Walk all instances and remove the document from their document set.
   worker_document_set_->Remove(filter, document_id);
   if (worker_document_set_->IsEmpty()) {
     // This worker has no more associated documents - shut it down.
     TerminateWorker();
   }
 }
 
+void SharedWorkerHost::RenderFrameDetached(int render_process_id,
+                                           int render_frame_id) {
+  if (!instance_)
+    return;
+  // Walk all instances and remove the all documents in the frame from their

[nhiroki, 2016/08/25 09:38:19]

all the documents

[horo, 2016/08/25 10:55:55]

Done.

+  // document set.
+  worker_document_set_->RemoveRenderFrame(render_process_id, render_frame_id);
+  if (worker_document_set_->IsEmpty()) {
+    // This worker has no more associated documents - shut it down.
+    TerminateWorker();
+  }
+}
+
 void SharedWorkerHost::WorkerContextClosed() {
   if (!instance_)
     return;
   // Set the closed flag - this will stop any further messages from
   // being sent to the worker (messages can still be sent from the worker,
   // for exception reporting, etc).
   closed_ = true;
   if (!termination_message_sent_)
     NotifyWorkerDestroyed(worker_process_id_, worker_route_id_);
 }
@@ skipping 166 matching lines @@
                                         int message_port_id) {
   for (FilterList::iterator i = filters_.begin(); i != filters_.end(); ++i) {
     if (i->filter() == filter && i->route_id() == route_id) {
       i->set_message_port_id(message_port_id);
       return;
     }
   }
 }
 
 }  // namespace content