Auto merge of #24758 - gterzian:impl_timer_task_source, r=nox

Implement timer-task-source, time-out service worker

<!-- Please describe your changes on the following line: -->

Implements the timer task-source, and folds the IPC glue-code into a single route set by the globalscope.

Also switches service worker to using a dedicated "time-out" mechanism, which previously relied on the timer mechanism(and I think didn't actually implement script timers).

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [ ] `./mach build -d` does not report any errors
- [ ] `./mach test-tidy` does not report any errors
- [ ] These changes fix #24747 (GitHub issue number if applicable)

<!-- Either: -->
- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because ___

<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->

<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->

1 files changed, 0 insertions, 4 deletions

diff --git a/components/script/dom/workletglobalscope.rs b/components/script/dom/workletglobalscope.rs
index 90fa5bd0115..995014cfc1a 100644
--- a/components/script/dom/workletglobalscope.rs
+++ b/components/script/dom/workletglobalscope.rs
@@ -15,7 +15,6 @@ use crate::script_thread::MainThreadScriptMsg;
 use crossbeam_channel::Sender;
 use devtools_traits::ScriptToDevtoolsControlMsg;
 use dom_struct::dom_struct;
-use ipc_channel::ipc;
 use ipc_channel::ipc::IpcSender;
 use js::jsval::UndefinedValue;
 use js::rust::Runtime;
@@ -55,8 +54,6 @@ impl WorkletGlobalScope {
         executor: WorkletExecutor,
         init: &WorkletGlobalScopeInit,
     ) -> Self {
-        // Any timer events fired on this global are ignored.
-        let (timer_event_chan, _) = ipc::channel().unwrap();
         let script_to_constellation_chan = ScriptToConstellationChan {
             sender: init.to_constellation_sender.clone(),
             pipeline_id,
@@ -70,7 +67,6 @@ impl WorkletGlobalScope {
                 script_to_constellation_chan,
                 init.scheduler_chan.clone(),
                 init.resource_threads.clone(),
-                timer_event_chan,
                 MutableOrigin::new(ImmutableOrigin::new_opaque()),
                 Default::default(),
                 init.is_headless,