Worker: Introduce per-global-scope task scheduler

third_party/WebKit/Source/modules/time_zone_monitor/TimeZoneMonitorClient.cpp

Index: third_party/WebKit/Source/modules/time_zone_monitor/TimeZoneMonitorClient.cpp
diff --git a/third_party/WebKit/Source/modules/time_zone_monitor/TimeZoneMonitorClient.cpp b/third_party/WebKit/Source/modules/time_zone_monitor/TimeZoneMonitorClient.cpp
index b5704a7dbd4387822a800d6e9b3d15e17a685d3f..3aed25162224f22f12b9334c9691a09b587eb143 100644
--- a/third_party/WebKit/Source/modules/time_zone_monitor/TimeZoneMonitorClient.cpp
+++ b/third_party/WebKit/Source/modules/time_zone_monitor/TimeZoneMonitorClient.cpp
@@ -9,6 +9,7 @@
 #include "core/dom/ExecutionContext.h"
 #include "core/workers/WorkerBackingThread.h"
 #include "core/workers/WorkerOrWorkletGlobalScope.h"
+#include "core/workers/WorkerTaskRunners.h"
 #include "core/workers/WorkerThread.h"
 #include "platform/CrossThreadFunctional.h"
 #include "public/platform/Platform.h"
@@ -70,9 +71,11 @@ void TimeZoneMonitorClient::OnTimeZoneChange(const String& time_zone_info) {
     // among multiple WorkerThreads.
     if (posted.Contains(&thread->GetWorkerBackingThread()))
       continue;
-    thread->PostTask(BLINK_FROM_HERE,
-                     CrossThreadBind(&NotifyTimezoneChangeOnWorkerThread,
-                                     WTF::CrossThreadUnretained(thread)));
+    thread->GetWorkerTaskRunners()
+        ->Get(TaskType::kUnthrottled)
+        ->PostTask(BLINK_FROM_HERE,
+                   CrossThreadBind(&NotifyTimezoneChangeOnWorkerThread,
+                                   WTF::CrossThreadUnretained(thread)));
     posted.insert(&thread->GetWorkerBackingThread());
   }
 }