[Blink-Worker] WorkerThread fires idleHandler only at the end of processing all tasks.

Source/core/workers/WorkerThread.h

Index: Source/core/workers/WorkerThread.h
diff --git a/Source/core/workers/WorkerThread.h b/Source/core/workers/WorkerThread.h
index 80a2bf549d83d441c9a8c73508a7b5a837fc746b..fd807262912612c4b40ad969e031430be45eaf2a 100644
--- a/Source/core/workers/WorkerThread.h
+++ b/Source/core/workers/WorkerThread.h
@@ -94,6 +94,11 @@ namespace blink {
 
         void interruptAndDispatchInspectorCommands();
         void setWorkerInspectorController(WorkerInspectorController*);
+        unsigned decrementAndReturnTaskCount();

[jochen (gone - plz use gerrit), 2014/09/02 10:14:14]

those should all be private

[Mayur Kankanwadi, 2014/09/03 11:26:22]

These functions are accessed from within the WorkerThreadTask, hence they need
to be public.

+        unsigned taskCount();
+        void queueUpIdleHandlerNow();
+        void decrementTaskCount();
+        bool isIdleHandlerTaskFiredOnce();
 
     protected:
         WorkerThread(WorkerLoaderProxy&, WorkerReportingProxy&, PassOwnPtrWillBeRawPtr<WorkerThreadStartupData>);
@@ -131,6 +136,10 @@ namespace blink {
 
         // Used to signal thread shutdown.
         OwnPtr<blink::WebWaitableEvent> m_shutdownEvent;
+        Mutex m_taskCounterMutex;
+        unsigned m_tasksCount;
+        bool m_isIdleHandlerTaskFiredOnce;
+        bool m_isIdleHandlerTask;
 
         // FIXME: This has to be last because of crbug.com/401397 - the
         // WorkerThread might get deleted before it had a chance to properly