Fix insufficient resources error handling (#819)

When naive DoAccept failed on ERR_INSUFFICIENT_RESOURCES, rv is passed
to DoAcceptComplete, if rv is not OK, this function sets next state to
DoAccept again, when naive reaches system wide file discriptor limits,
and a pending CONNECT in queue, naive will be trapped in an infinite
busy spinning loop and can not recover as resources are not reclaimed.

src/net/tools/naive/naive_proxy.cc

@@ -145,7 +145,14 @@ int NaiveProxy::DoAcceptComplete(int result) {
   if (result != OK) {
     next_state_ = State::kAccept;
     LOG(ERROR) << "Accept error: " << ErrorToShortString(result);
-    // This accept error is ignored to start the next accept.
+    if (result == ERR_INSUFFICIENT_RESOURCES) {
+      base::SingleThreadTaskRunner::GetCurrentDefault()->PostDelayedTask(
+          FROM_HERE,
+          base::BindOnce(&NaiveProxy::OnIOComplete,
+                         weak_ptr_factory_.GetWeakPtr(), OK),
+          base::Seconds(1));
+      return ERR_IO_PENDING;
+    }
     return OK;
   }