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..fdf06bad37bdae2c226266e57eb1027c79516c67 100644
--- a/third_party/WebKit/Source/modules/time_zone_monitor/TimeZoneMonitorClient.cpp
+++ b/third_party/WebKit/Source/modules/time_zone_monitor/TimeZoneMonitorClient.cpp
@@ -7,6 +7,7 @@
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8PerIsolateData.h"
 #include "core/dom/ExecutionContext.h"
+#include "core/dom/TaskRunnerHelper.h"
 #include "core/workers/WorkerBackingThread.h"
 #include "core/workers/WorkerOrWorkletGlobalScope.h"
 #include "core/workers/WorkerThread.h"
@@ -70,9 +71,10 @@ 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)));
+    TaskRunnerHelper::Get(TaskType::kUnthrottled, thread)

[haraken, 2017/04/13 07:03:36]

Why kUnthrottled?

[nhiroki, 2017/04/13 08:23:50]

Hm... this should be kUnspecedTimer. Replaced.

+        ->PostTask(BLINK_FROM_HERE,
+                   CrossThreadBind(&NotifyTimezoneChangeOnWorkerThread,
+                                   WTF::CrossThreadUnretained(thread)));
     posted.insert(&thread->GetWorkerBackingThread());
   }
 }