Oilpan: fix build after r195134.

Source/bindings/core/v8/WorkerScriptDebugServer.cpp

Index: Source/bindings/core/v8/WorkerScriptDebugServer.cpp
diff --git a/Source/bindings/core/v8/WorkerScriptDebugServer.cpp b/Source/bindings/core/v8/WorkerScriptDebugServer.cpp
index fb36be16505507f6afc3c0289db617c90e53e66e..41b5a0d1fba6c823d788b0660a4a1fd056eea9d0 100644
--- a/Source/bindings/core/v8/WorkerScriptDebugServer.cpp
+++ b/Source/bindings/core/v8/WorkerScriptDebugServer.cpp
@@ -44,12 +44,22 @@ namespace blink {
 static const char* workerContextDebugId = "[worker]";
 
 WorkerScriptDebugServer::WorkerScriptDebugServer(WorkerGlobalScope* workerGlobalScope)
-    : PerIsolateDebuggerClient(v8::Isolate::GetCurrent(), adoptPtr(new ScriptDebugServer(v8::Isolate::GetCurrent(), this)))
-    , m_listener(0)
+    : PerIsolateDebuggerClient(v8::Isolate::GetCurrent(), ScriptDebugServer::create(v8::Isolate::GetCurrent(), this))
+    , m_listener(nullptr)
     , m_workerGlobalScope(workerGlobalScope)
 {
 }
 
+WorkerScriptDebugServer::~WorkerScriptDebugServer()
+{
+}
+
+DEFINE_TRACE(WorkerScriptDebugServer)
+{
+    visitor->trace(m_workerGlobalScope);
+    PerIsolateDebuggerClient::trace(visitor);
+}
+
 void WorkerScriptDebugServer::setContextDebugData(v8::Local<v8::Context> context)
 {
     ScriptDebugServer::setContextDebugData(context, workerContextDebugId);