1 files changed, 5 insertions, 9 deletions
diff --git a/toolkit/components/processtools/tests/browser/browser_test_powerMetrics.js b/toolkit/components/processtools/tests/browser/browser_test_powerMetrics.js
index 93833a5207..0ebaaa969e 100644
--- a/toolkit/components/processtools/tests/browser/browser_test_powerMetrics.js
+++ b/toolkit/components/processtools/tests/browser/browser_test_powerMetrics.js
@@ -87,16 +87,12 @@ add_task(async () => {
       let initalCpuTime = await getChildCpuTime(pid);
       let afterCpuTime;
       do {
-        await SpecialPowers.spawn(
-          firstBrowser,
-          [kBusyWaitForMs],
-          async kBusyWaitForMs => {
-            let startTime = Date.now();
-            while (Date.now() - startTime < 10) {
-              // Burn CPU time...
-            }
+        await SpecialPowers.spawn(firstBrowser, [kBusyWaitForMs], async () => {
+          let startTime = Date.now();
+          while (Date.now() - startTime < 10) {
+            // Burn CPU time...
           }
-        );
+        });
         afterCpuTime = await getChildCpuTime(pid);
       } while (afterCpuTime - initalCpuTime < kBusyWaitForMs * kNS_PER_MS);
       cpuTimeSpentOnBackgroundTab = Math.floor(