Use C++11 features in core/workers.

Source/core/workers/WorkerInspectorProxy.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 
 #include "core/workers/WorkerInspectorProxy.h"
 
 #include "core/dom/CrossThreadTask.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/inspector/InspectorTraceEvents.h"
 #include "core/inspector/WorkerInspectorController.h"
 #include "core/workers/WorkerThread.h"
 #include "platform/TraceEvent.h"
 #include "platform/weborigin/KURL.h"
 
 namespace blink {
 
 WorkerInspectorProxy::WorkerInspectorProxy()
-    : m_workerThread(0)
-    , m_executionContext(0)
-    , m_pageInspector(0)
+    : m_workerThread(nullptr)
+    , m_executionContext(nullptr)
+    , m_pageInspector(nullptr)
 {
 }
 
 PassOwnPtr<WorkerInspectorProxy> WorkerInspectorProxy::create()
 {
     return adoptPtr(new WorkerInspectorProxy());
 }
 
 WorkerInspectorProxy::~WorkerInspectorProxy()
 {
 }
 
 void WorkerInspectorProxy::workerThreadCreated(ExecutionContext* context, WorkerThread* workerThread, const KURL& url)
 {
     m_workerThread = workerThread;
     m_executionContext = context;
     InspectorInstrumentation::didStartWorker(context, this, url);
 }
 
 void WorkerInspectorProxy::workerThreadTerminated()
 {
     if (m_workerThread)
         InspectorInstrumentation::workerTerminated(m_executionContext, this);
-    m_workerThread = 0;
-    m_pageInspector = 0;
+    m_workerThread = nullptr;
+    m_pageInspector = nullptr;
 }
 
 static void connectToWorkerGlobalScopeInspectorTask(ExecutionContext* context, bool)
 {
     toWorkerGlobalScope(context)->workerInspectorController()->connectFrontend();
 }
 
 void WorkerInspectorProxy::connectToInspector(WorkerInspectorProxy::PageInspector* pageInspector)
 {
     if (!m_workerThread)
         return;
     ASSERT(!m_pageInspector);
     m_pageInspector = pageInspector;
     m_workerThread->postDebuggerTask(createCrossThreadTask(connectToWorkerGlobalScopeInspectorTask, true));
 }
 
 static void disconnectFromWorkerGlobalScopeInspectorTask(ExecutionContext* context, bool)
 {
     toWorkerGlobalScope(context)->workerInspectorController()->disconnectFrontend();
 }
 
 void WorkerInspectorProxy::disconnectFromInspector()
 {
-    m_pageInspector = 0;
+    m_pageInspector = nullptr;
     if (!m_workerThread)
         return;
     m_workerThread->postDebuggerTask(createCrossThreadTask(disconnectFromWorkerGlobalScopeInspectorTask, true));
 }
 
 static void dispatchOnInspectorBackendTask(ExecutionContext* context, const String& message)
 {
     toWorkerGlobalScope(context)->workerInspectorController()->dispatchMessageFromFrontend(message);
 }
 
 void WorkerInspectorProxy::sendMessageToInspector(const String& message)
 {
     if (!m_workerThread)
         return;
     m_workerThread->postDebuggerTask(createCrossThreadTask(dispatchOnInspectorBackendTask, String(message)));
     m_workerThread->interruptAndDispatchInspectorCommands();
 }
 
 void WorkerInspectorProxy::writeTimelineStartedEvent(const String& sessionId)
 {
     if (!m_workerThread)
         return;
     TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "TracingSessionIdForWorker", "data", InspectorTracingSessionIdForWorkerEvent::data(sessionId, m_workerThread));
 }
 
 } // namespace blink