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

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 646cd3d7c457a9ec5cee0cbb2bbcd833e46275b5..4239fc56b3b3865b13bf4185e8d5c8f9a05e520a 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1062,8 +1062,7 @@ void RenderProcessHostImpl::CreateMessageFilters() {
   service_worker_filter->Init(
       storage_partition_impl_->GetServiceWorkerContext());
   AddFilter(service_worker_filter.get());
-
-  AddFilter(new SharedWorkerMessageFilter(
+  shared_worker_message_filter_ = new SharedWorkerMessageFilter(
       GetID(), resource_context,
       WorkerStoragePartition(
           storage_partition_impl_->GetURLRequestContext(),
@@ -1074,7 +1073,8 @@ void RenderProcessHostImpl::CreateMessageFilters() {
           storage_partition_impl_->GetDatabaseTracker(),
           storage_partition_impl_->GetIndexedDBContext(),
           storage_partition_impl_->GetServiceWorkerContext()),
-      message_port_message_filter_.get()));
+      message_port_message_filter_.get());
+  AddFilter(shared_worker_message_filter_.get());
 
 #if defined(ENABLE_WEBRTC)
   p2p_socket_dispatcher_host_ = new P2PSocketDispatcherHost(
@@ -1926,6 +1926,12 @@ bool RenderProcessHostImpl::IgnoreInputEvents() const {
 
 void RenderProcessHostImpl::Cleanup() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  // If there is no listeners, remove the reference from the all documents in
+  // the renderer process to shared workers without waiting for DocumentDetached

[nhiroki, 2016/08/17 07:34:06]

"the reference to shared workers" ?

[horo, 2016/08/17 07:38:46]

Done.

+  // IPC message.
+  if (listeners_.IsEmpty())
+    shared_worker_message_filter_->DetachAllDocuments();
+
   // Keep the one renderer thread around forever in single process mode.
   if (run_renderer_in_process())
     return;