[proof-of-concept] SW thread independent of the main thread

third_party/WebKit/Source/core/workers/WorkerThread.h

Index: third_party/WebKit/Source/core/workers/WorkerThread.h
diff --git a/third_party/WebKit/Source/core/workers/WorkerThread.h b/third_party/WebKit/Source/core/workers/WorkerThread.h
index 752ff21cd5d89114e9063ec25611306eaa1852b7..2abce17466bfe34ea9903cd5f5a0d341ca310bc2 100644
--- a/third_party/WebKit/Source/core/workers/WorkerThread.h
+++ b/third_party/WebKit/Source/core/workers/WorkerThread.h
@@ -153,7 +153,7 @@ public:
     void waitForShutdownForTesting() { m_shutdownEvent->wait(); }
 
 protected:
-    WorkerThread(PassRefPtr<WorkerLoaderProxy>, WorkerReportingProxy&);
+    WorkerThread(PassRefPtr<WorkerLoaderProxy>, WorkerReportingProxy&, bool launchFromMainThread = true);
 
     // Factory method for creating a new worker context for the thread.
     // Called on the worker thread.
@@ -254,6 +254,8 @@ private:
     std::unique_ptr<ForceTerminationTask> m_scheduledForceTerminationTask;
 
     Persistent<WorkerThreadLifecycleContext> m_workerThreadLifecycleContext;
+
+    bool m_launchedFromMainThread;
 };
 
 } // namespace blink