Allow wrapping worker runnables in cancellable runnables.

1 files changed, 7 insertions, 0 deletions

diff --git a/components/script/dom/workerglobalscope.rs b/components/script/dom/workerglobalscope.rs
index 2e1c983bfd4..b04663bbd08 100644
--- a/components/script/dom/workerglobalscope.rs
+++ b/components/script/dom/workerglobalscope.rs
@@ -29,6 +29,7 @@ use net_traits::{LoadContext, ResourceThreads, load_whole_resource};
 use net_traits::{RequestSource, LoadOrigin, CustomResponseSender, IpcSend};
 use profile_traits::{mem, time};
 use script_runtime::{CommonScriptMsg, ScriptChan, ScriptPort, maybe_take_panic_result};
+use script_thread::RunnableWrapper;
 use script_traits::ScriptMsg as ConstellationMsg;
 use script_traits::{MsDuration, TimerEvent, TimerEventId, TimerEventRequest, TimerSource};
 use std::cell::Cell;
@@ -268,6 +269,12 @@ impl WorkerGlobalScope {
     pub fn panic_chan(&self) -> &IpcSender<PanicMsg> {
         &self.panic_chan
     }
+
+    pub fn get_runnable_wrapper(&self) -> RunnableWrapper {
+        RunnableWrapper {
+            cancelled: self.closing.clone(),
+        }
+    }
 }
 
 impl LoadOrigin for WorkerGlobalScope {