DevTools: log worker thread ids on the main thread when Timeline recording is enabled

Source/core/inspector/InspectorTraceEvents.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/inspector/InspectorTraceEvents.h"
 
 #include "bindings/core/v8/ScriptCallStackFactory.h"
 #include "bindings/core/v8/ScriptGCEvent.h"
 #include "bindings/core/v8/ScriptSourceCode.h"
 #include "core/events/Event.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/inspector/IdentifiersFactory.h"
 #include "core/inspector/InspectorNodeIds.h"
 #include "core/inspector/ScriptCallStack.h"
 #include "core/page/Page.h"
 #include "core/rendering/RenderImage.h"
 #include "core/rendering/RenderObject.h"
+#include "core/workers/WorkerThread.h"
 #include "core/xml/XMLHttpRequest.h"
 #include "platform/JSONValues.h"
 #include "platform/TracedValue.h"
 #include "platform/graphics/GraphicsLayer.h"
 #include "platform/network/ResourceRequest.h"
 #include "platform/network/ResourceResponse.h"
 #include "platform/weborigin/KURL.h"
 #include "wtf/Vector.h"
 #include <inttypes.h>
 
@@ skipping 318 matching lines @@
 
 PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorTimeStampEvent::data(ExecutionContext* context, const String& message)
 {
     RefPtr<TracedValue> value = TracedValue::create();
     value->setString("message", message);
     if (LocalFrame* frame = frameForExecutionContext(context))
         value->setString("frame", toHexString(frame));
     return value;
 }
 
+PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorTracingStartedInWorkerEvent::data(const String& sessionId, WorkerThread* workerThread)
+{
+    RefPtr<TracedValue> value = TracedValue::create();
+    value->setString("sessionId", sessionId);
+    value->setDouble("workerThreadId", workerThread->platformThreadId());

[loislo, 2014/09/09 13:59:44]

do we have a guaranty that workerThread object is alive at the time when we do
the serialization?

[yurys, 2014/09/09 14:04:27]

We don't need the thread to be alive there as we read thread id synchronously
when the event is written.

[loislo, 2014/09/09 14:14:08]

ok

+    return value;
+}
+
 }