Turn WorkerLoaderProxy into a threadsafe, ref-counted object.

Source/web/WebSharedWorkerImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 29 matching lines @@
 #include "core/inspector/WorkerDebuggerAgent.h"
 #include "core/inspector/WorkerInspectorController.h"
 #include "core/loader/FrameLoadRequest.h"
 #include "core/loader/FrameLoader.h"
 #include "core/page/Page.h"
 #include "core/workers/SharedWorkerGlobalScope.h"
 #include "core/workers/SharedWorkerThread.h"
 #include "core/workers/WorkerClients.h"
 #include "core/workers/WorkerGlobalScope.h"
 #include "core/workers/WorkerInspectorProxy.h"
+#include "core/workers/WorkerLoaderProxy.h"
 #include "core/workers/WorkerScriptLoader.h"
 #include "core/workers/WorkerThreadStartupData.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/heap/Handle.h"
 #include "platform/network/ContentSecurityPolicyParsers.h"
 #include "platform/network/ResourceResponse.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "public/platform/WebFileError.h"
 #include "public/platform/WebMessagePortChannel.h"
@@ skipping 104 matching lines @@
 }
 
 WebSharedWorkerImpl::~WebSharedWorkerImpl()
 {
     ASSERT(m_webView);
     // Detach the client before closing the view to avoid getting called back.
     toWebLocalFrameImpl(m_mainFrame)->setClient(0);
 
     m_webView->close();
     m_mainFrame->close();
+    if (m_loaderProxy)
+        m_loaderProxy->detachProvider(this);
 }
 
 void WebSharedWorkerImpl::stopWorkerThread()
 {
     if (m_askedToTerminate)
         return;
     m_askedToTerminate = true;
     if (m_mainScriptLoader) {
         m_mainScriptLoader->cancel();
         m_mainScriptLoader.clear();
@@ skipping 126 matching lines @@
 }
 
 void WebSharedWorkerImpl::workerThreadTerminatedOnMainThread()
 {
     if (client())
         client()->workerContextDestroyed();
     // The lifetime of this proxy is controlled by the worker context.
     delete this;
 }
 
-// WorkerLoaderProxy -----------------------------------------------------------
+// WorkerLoaderProxyProvider -----------------------------------------------------------
 
 void WebSharedWorkerImpl::postTaskToLoader(PassOwnPtr<ExecutionContextTask> task)
 {
     toWebLocalFrameImpl(m_mainFrame)->frame()->document()->postTask(task);
 }
 
 bool WebSharedWorkerImpl::postTaskToWorkerGlobalScope(PassOwnPtr<ExecutionContextTask> task)
 {
     m_workerThread->postTask(task);
     return true;
@@ skipping 54 matching lines @@
         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), starterOrigin, workerClients.release());
-    setWorkerThread(SharedWorkerThread::create(m_name, *this, *this, startupData.release()));
+    m_loaderProxy = WorkerLoaderProxy::create(this);
+    setWorkerThread(SharedWorkerThread::create(m_name, m_loaderProxy, *this, startupData.release()));
     InspectorInstrumentation::scriptImported(m_loadingDocument.get(), m_mainScriptLoader->identifier(), m_mainScriptLoader->script());
     m_mainScriptLoader.clear();
 
     workerThread()->start();
     m_workerInspectorProxy->workerThreadCreated(m_loadingDocument.get(), workerThread(), m_url);
     if (client())
         client()->workerScriptLoaded();
 }
 
 void WebSharedWorkerImpl::terminateWorkerContext()
@@ skipping 41 matching lines @@
     if (devtoolsAgent)
         devtoolsAgent->dispatchOnInspectorBackend(message);
 }
 
 WebSharedWorker* WebSharedWorker::create(WebSharedWorkerClient* client)
 {
     return new WebSharedWorkerImpl(client);
 }
 
 } // namespace blink