worker: Fix a bad static-cast.

Source/core/workers/WorkerMessagingProxy.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 25 matching lines @@
 #include "core/frame/Console.h"
 #include "core/frame/FrameConsole.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/csp/ContentSecurityPolicy.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/inspector/ScriptCallStack.h"
 #include "core/inspector/WorkerDebuggerAgent.h"
 #include "core/loader/DocumentLoadTiming.h"
 #include "core/loader/DocumentLoader.h"
-#include "core/workers/DedicatedWorkerGlobalScope.h"
 #include "core/workers/DedicatedWorkerThread.h"
 #include "core/workers/Worker.h"
 #include "core/workers/WorkerClients.h"
 #include "core/workers/WorkerInspectorProxy.h"
 #include "core/workers/WorkerObjectProxy.h"
 #include "core/workers/WorkerThreadStartupData.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Functional.h"
 #include "wtf/MainThread.h"
 
 namespace blink {
 
 class MessageWorkerGlobalScopeTask : public ExecutionContextTask {
 public:
-    static PassOwnPtr<MessageWorkerGlobalScopeTask> create(PassRefPtr<SerializedScriptValue> message, PassOwnPtr<MessagePortChannelArray> channels)
+    static PassOwnPtr<MessageWorkerGlobalScopeTask> create(PassRefPtr<SerializedScriptValue> message, PassOwnPtr<MessagePortChannelArray> channels, WorkerObjectProxy& workerObjectProxy)
     {
-        return adoptPtr(new MessageWorkerGlobalScopeTask(message, channels));
+        return adoptPtr(new MessageWorkerGlobalScopeTask(message, channels, workerObjectProxy));
     }
 
 private:
-    MessageWorkerGlobalScopeTask(PassRefPtr<SerializedScriptValue> message, PassOwnPtr<MessagePortChannelArray> channels)
+    MessageWorkerGlobalScopeTask(PassRefPtr<SerializedScriptValue> message, PassOwnPtr<MessagePortChannelArray> channels, WorkerObjectProxy& workerObjectProxy)
         : m_message(message)
         , m_channels(channels)
+        , m_workerObjectProxy(workerObjectProxy)
     {
     }
 
     virtual void performTask(ExecutionContext* scriptContext)
     {
         ASSERT_WITH_SECURITY_IMPLICATION(scriptContext->isWorkerGlobalScope());
-        DedicatedWorkerGlobalScope* context = static_cast<DedicatedWorkerGlobalScope*>(scriptContext);
         OwnPtrWillBeRawPtr<MessagePortArray> ports = MessagePort::entanglePorts(*scriptContext, m_channels.release());
-        context->dispatchEvent(MessageEvent::create(ports.release(), m_message));
-        context->thread()->workerObjectProxy().confirmMessageFromWorkerObject(context->hasPendingActivity());
+        WorkerGlobalScope* globalScope = static_cast<WorkerGlobalScope*>(scriptContext);
+        globalScope->dispatchEvent(MessageEvent::create(ports.release(), m_message));
+        m_workerObjectProxy.confirmMessageFromWorkerObject(scriptContext->hasPendingActivity());
     }
 
 private:
     RefPtr<SerializedScriptValue> m_message;
     OwnPtr<MessagePortChannelArray> m_channels;
+    WorkerObjectProxy& m_workerObjectProxy;
 };
 
 WorkerMessagingProxy::WorkerMessagingProxy(Worker* workerObject, PassOwnPtrWillBeRawPtr<WorkerClients> workerClients)
     : m_executionContext(workerObject->executionContext())
     , m_workerObjectProxy(WorkerObjectProxy::create(m_executionContext.get(), this))
     , m_workerObject(workerObject)
     , m_mayBeDestroyed(false)
     , m_unconfirmedMessageCount(0)
     , m_workerThreadHadPendingActivity(false)
     , m_askedToTerminate(false)
@@ skipping 45 matching lines @@
     m_workerObject->dispatchEvent(MessageEvent::create(ports.release(), message));
 }
 
 void WorkerMessagingProxy::postMessageToWorkerGlobalScope(PassRefPtr<SerializedScriptValue> message, PassOwnPtr<MessagePortChannelArray> channels)
 {
     if (m_askedToTerminate)
         return;
 
     if (m_workerThread) {
         ++m_unconfirmedMessageCount;
-        m_workerThread->postTask(FROM_HERE, MessageWorkerGlobalScopeTask::create(message, channels));
-    } else
-        m_queuedEarlyTasks.append(MessageWorkerGlobalScopeTask::create(message, channels));
+        m_workerThread->postTask(FROM_HERE, MessageWorkerGlobalScopeTask::create(message, channels, workerObjectProxy()));
+    } else {
+        m_queuedEarlyTasks.append(MessageWorkerGlobalScopeTask::create(message, channels, workerObjectProxy()));
+    }
 }
 
 bool WorkerMessagingProxy::postTaskToWorkerGlobalScope(PassOwnPtr<ExecutionContextTask> task)
 {
     if (m_askedToTerminate)
         return false;
 
     ASSERT(m_workerThread);
     m_workerThread->postTask(FROM_HERE, task);
     return true;
@@ skipping 141 matching lines @@
 
     // FIXME: This need to be revisited when we support nested worker one day
     ASSERT(m_executionContext->isDocument());
     Document* document = toDocument(m_executionContext.get());
     LocalFrame* frame = document->frame();
     if (frame)
         frame->console().adoptWorkerMessagesAfterTermination(this);
 }
 
 } // namespace blink