1 files changed, 2 insertions, 9 deletions
diff --git a/JavaScriptCore/wtf/qt/ThreadingQt.cpp b/JavaScriptCore/wtf/qt/ThreadingQt.cpp
index dc04a68..8041dea 100644
--- a/JavaScriptCore/wtf/qt/ThreadingQt.cpp
+++ b/JavaScriptCore/wtf/qt/ThreadingQt.cpp
@@ -84,8 +84,6 @@ public Q_SLOTS:
 
 static Mutex* atomicallyInitializedStaticMutex;
 
-static ThreadIdentifier mainThreadIdentifier;
-
 static Mutex& threadMapMutex()
 {
     static Mutex mutex;
@@ -146,11 +144,6 @@ void initializeThreading()
         atomicallyInitializedStaticMutex = new Mutex;
         threadMapMutex();
         initializeRandomNumberGenerator();
-        QThread* mainThread = QCoreApplication::instance()->thread();
-        mainThreadIdentifier = identifierByQthreadHandle(mainThread);
-        if (!mainThreadIdentifier)
-            mainThreadIdentifier = establishIdentifierForThread(mainThread);
-        initializeMainThread();
     }
 }
 
@@ -215,9 +208,9 @@ ThreadIdentifier currentThread()
     return establishIdentifierForThread(currentThread);
 }
 
-bool isMainThread()
+void yield()
 {
-    return QThread::currentThread() == QCoreApplication::instance()->thread();
+    QThread::yieldCurrentThread();
 }
 
 Mutex::Mutex()