DevTools: Connect worker cpu profiles to worker tracing threads.

Source/core/inspector/InspectorTraceEvents.cpp

Index: Source/core/inspector/InspectorTraceEvents.cpp
diff --git a/Source/core/inspector/InspectorTraceEvents.cpp b/Source/core/inspector/InspectorTraceEvents.cpp
index c2bfc3d0e68a811ee0d7952430cf701aae510a85..2b6164648352e50b04b4848e3fdf521917840824 100644
--- a/Source/core/inspector/InspectorTraceEvents.cpp
+++ b/Source/core/inspector/InspectorTraceEvents.cpp
@@ -611,10 +611,11 @@ PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorTimeStampEvent::data(E
     return value.release();
 }
 
-PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorTracingSessionIdForWorkerEvent::data(const String& sessionId, WorkerThread* workerThread)
+PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorTracingSessionIdForWorkerEvent::data(const String& sessionId, int workerId, WorkerThread* workerThread)
 {
     RefPtr<TracedValue> value = TracedValue::create();
     value->setString("sessionId", sessionId);
+    value->setInteger("workerId", workerId);
     value->setDouble("workerThreadId", workerThread->platformThreadId());
     return value.release();
 }