Transfer SecurityOrigin overrides to Workers.

Source/core/workers/WorkerMessagingProxy.cpp

Index: Source/core/workers/WorkerMessagingProxy.cpp
diff --git a/Source/core/workers/WorkerMessagingProxy.cpp b/Source/core/workers/WorkerMessagingProxy.cpp
index aef742dc48bceaef9d5efec621b478b2daecc96a..3fc69d9d5270a50a7cca958e0dfba16a2b9b9880 100644
--- a/Source/core/workers/WorkerMessagingProxy.cpp
+++ b/Source/core/workers/WorkerMessagingProxy.cpp
@@ -116,8 +116,9 @@ void WorkerMessagingProxy::startWorkerGlobalScope(const KURL& scriptURL, const S
         return;
     }
     Document* document = toDocument(m_executionContext.get());
+    SecurityOrigin* starterOrigin = document->securityOrigin();
 
-    OwnPtrWillBeRawPtr<WorkerThreadStartupData> startupData = WorkerThreadStartupData::create(scriptURL, userAgent, sourceCode, startMode, document->contentSecurityPolicy()->deprecatedHeader(), document->contentSecurityPolicy()->deprecatedHeaderType(), m_workerClients.release());
+    OwnPtrWillBeRawPtr<WorkerThreadStartupData> startupData = WorkerThreadStartupData::create(scriptURL, userAgent, sourceCode, startMode, document->contentSecurityPolicy()->deprecatedHeader(), document->contentSecurityPolicy()->deprecatedHeaderType(), starterOrigin, m_workerClients.release());
     double originTime = document->loader() ? document->loader()->timing()->referenceMonotonicTime() : monotonicallyIncreasingTime();
 
     RefPtr<DedicatedWorkerThread> thread = DedicatedWorkerThread::create(*this, *m_workerObjectProxy.get(), originTime, startupData.release());