1 files changed, 7 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/common/util/timeout.ts b/dom/webgpu/tests/cts/checkout/src/common/util/timeout.ts
new file mode 100644
index 0000000000..13c3b7fb90
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/common/util/timeout.ts
@@ -0,0 +1,7 @@
+/** Defined by WPT. Like `setTimeout`, but applies a timeout multiplier for slow test systems. */
+declare const step_timeout: undefined | typeof setTimeout;
+
+/**
+ * Equivalent of `setTimeout`, but redirects to WPT's `step_timeout` when it is defined.
+ */
+export const timeout = typeof step_timeout !== 'undefined' ? step_timeout : setTimeout;