1 files changed, 43 insertions, 0 deletions
diff --git a/dom/webidl/WebTaskScheduling.webidl b/dom/webidl/WebTaskScheduling.webidl
new file mode 100644
index 0000000000..727484aa3f
--- /dev/null
+++ b/dom/webidl/WebTaskScheduling.webidl
@@ -0,0 +1,43 @@
+enum TaskPriority {
+  "user-blocking",
+  "user-visible",
+  "background"
+};
+
+[Exposed=(Window, Worker), Pref="dom.enable_web_task_scheduling"]
+interface TaskSignal : AbortSignal {
+  readonly attribute TaskPriority priority;
+
+  attribute EventHandler onprioritychange;
+};
+
+
+dictionary SchedulerPostTaskOptions {
+  AbortSignal signal;
+  TaskPriority priority;
+  [EnforceRange] unsigned long long delay = 0;
+};
+
+callback SchedulerPostTaskCallback = any ();
+
+[Exposed=(Window, Worker), Pref="dom.enable_web_task_scheduling"]
+interface Scheduler {
+  [UseCounter]
+  Promise<any> postTask(
+    SchedulerPostTaskCallback callback,
+    optional SchedulerPostTaskOptions options = {}
+  );
+};
+
+dictionary TaskControllerInit {
+  TaskPriority priority = "user-visible";
+};
+
+[Exposed=(Window,Worker), Pref="dom.enable_web_task_scheduling"]
+interface TaskController : AbortController {
+  [Throws]
+  constructor(optional TaskControllerInit init = {});
+
+  [Throws]
+  undefined setPriority(TaskPriority priority);
+};