Transfer SecurityOrigin overrides to Workers.

Source/web/WebSharedWorkerImpl.cpp

Index: Source/web/WebSharedWorkerImpl.cpp
diff --git a/Source/web/WebSharedWorkerImpl.cpp b/Source/web/WebSharedWorkerImpl.cpp
index 240b9108441811afba92ebce1ad30672d2611fa7..63363d33218bb0440e5f35ae317f48ed7976fcc1 100644
--- a/Source/web/WebSharedWorkerImpl.cpp
+++ b/Source/web/WebSharedWorkerImpl.cpp
@@ -394,11 +394,14 @@ void WebSharedWorkerImpl::onScriptLoaderFinished()
     if (InspectorInstrumentation::shouldPauseDedicatedWorkerOnStart(document))
         startMode = PauseWorkerGlobalScopeOnStart;
 
+    // FIXME: this document's origin is pristine and without any extra privileges. (crbug.com/254993)
+    SecurityOrigin* starterOrigin = document->securityOrigin();
+
     OwnPtrWillBeRawPtr<WorkerClients> workerClients = WorkerClients::create();
     provideLocalFileSystemToWorker(workerClients.get(), LocalFileSystemClient::create());
     WebSecurityOrigin webSecurityOrigin(m_loadingDocument->securityOrigin());
     providePermissionClientToWorker(workerClients.get(), adoptPtr(client()->createWorkerPermissionClientProxy(webSecurityOrigin)));
-    OwnPtrWillBeRawPtr<WorkerThreadStartupData> startupData = WorkerThreadStartupData::create(m_url, m_loadingDocument->userAgent(m_url), m_mainScriptLoader->script(), startMode, m_contentSecurityPolicy, static_cast<ContentSecurityPolicyHeaderType>(m_policyType), workerClients.release());
+    OwnPtrWillBeRawPtr<WorkerThreadStartupData> startupData = WorkerThreadStartupData::create(m_url, m_loadingDocument->userAgent(m_url), m_mainScriptLoader->script(), startMode, m_contentSecurityPolicy, static_cast<ContentSecurityPolicyHeaderType>(m_policyType), starterOrigin, workerClients.release());
     setWorkerThread(SharedWorkerThread::create(m_name, *this, *this, startupData.release()));
     InspectorInstrumentation::scriptImported(m_loadingDocument.get(), m_mainScriptLoader->identifier(), m_mainScriptLoader->script());
     m_mainScriptLoader.clear();