workers: Change how debugger-tasks are posted to the thread.

Source/core/workers/WorkerInspectorProxy.h

Index: Source/core/workers/WorkerInspectorProxy.h
diff --git a/Source/core/workers/WorkerInspectorProxy.h b/Source/core/workers/WorkerInspectorProxy.h
index a07e93cb2fd606d4e138774f9b5d567eefc6394d..31ceee807b1cf3eb1733cdae62c69c64a4bc17f6 100644
--- a/Source/core/workers/WorkerInspectorProxy.h
+++ b/Source/core/workers/WorkerInspectorProxy.h
@@ -6,12 +6,14 @@
 #define WorkerInspectorProxy_h
 
 #include "core/CoreExport.h"
+#include "public/platform/WebThread.h"
 #include "wtf/Forward.h"
 
 namespace blink {
 
 class ExecutionContext;
 class KURL;
+class WebTraceLocation;
 class WorkerGlobalScopeProxy;
 class WorkerThread;
 
@@ -46,6 +48,8 @@ public:
 private:
     WorkerInspectorProxy();
 
+    void addDebuggerTaskForWorker(const WebTraceLocation&, PassOwnPtr<WebThread::Task>);
+
     WorkerThread* m_workerThread;
     ExecutionContext* m_executionContext;
     WorkerInspectorProxy::PageInspector* m_pageInspector;