Use nullptr_t for RefPtr, PassRefPtr and RawPtr.

Source/bindings/v8/WorkerScriptController.cpp

 /*
  * Copyright (C) 2009, 2012 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 87 matching lines @@
 
     OwnPtr<gin::IsolateHolder> m_isolateHolder;
 };
 
 WorkerScriptController::~WorkerScriptController()
 {
     ThreadState::current()->removeInterruptor(m_interruptor.get());
 
     RELEASE_ASSERT(m_world->hasOneRef());
     // ~DOMWrapperWorld() must be called before disposing the isolate.
-    m_world = 0;
+    m_world = nullptr;
 
     // The corresponding call to didStartWorkerRunLoop is in
     // WorkerThread::workerThread().
     // See http://webkit.org/b/83104#c14 for why this is here.
     blink::Platform::current()->didStopWorkerRunLoop(blink::WebWorkerRunLoop(&m_workerGlobalScope.thread()->runLoop()));
 
     disposeContext();
 
     ThreadState::current()->addCleanupTask(IsolateCleanupTask::create(m_isolateHolder.release()));
 }
@@ skipping 100 matching lines @@
 void WorkerScriptController::evaluate(const ScriptSourceCode& sourceCode, RefPtr<ErrorEvent>* errorEvent)
 {
     if (isExecutionForbidden())
         return;
 
     WorkerGlobalScopeExecutionState state;
     evaluate(sourceCode.source(), sourceCode.url().string(), sourceCode.startPosition(), &state);
     if (state.hadException) {
         if (errorEvent) {
             *errorEvent = m_workerGlobalScope.shouldSanitizeScriptError(state.sourceURL, NotSharableCrossOrigin) ?
-                ErrorEvent::createSanitizedError(0) : ErrorEvent::create(state.errorMessage, state.sourceURL, state.lineNumber, state.columnNumber, 0);
+                ErrorEvent::createSanitizedError(nullptr) : ErrorEvent::create(state.errorMessage, state.sourceURL, state.lineNumber, state.columnNumber, nullptr);
             V8ErrorHandler::storeExceptionOnErrorEventWrapper(errorEvent->get(), state.exception.v8Value(), isolate());
         } else {
             ASSERT(!m_workerGlobalScope.shouldSanitizeScriptError(state.sourceURL, NotSharableCrossOrigin));
-            RefPtr<ErrorEvent> event = m_errorEventFromImportedScript ? m_errorEventFromImportedScript.release() : ErrorEvent::create(state.errorMessage, state.sourceURL, state.lineNumber, state.columnNumber, 0);
-            m_workerGlobalScope.reportException(event, 0, NotSharableCrossOrigin);
+            RefPtr<ErrorEvent> event = m_errorEventFromImportedScript ? m_errorEventFromImportedScript.release() : ErrorEvent::create(state.errorMessage, state.sourceURL, state.lineNumber, state.columnNumber, nullptr);
+            m_workerGlobalScope.reportException(event, nullptr, NotSharableCrossOrigin);
         }
     }
 }
 
 void WorkerScriptController::scheduleExecutionTermination()
 {
     // The mutex provides a memory barrier to ensure that once
     // termination is scheduled, isExecutionTerminating will
     // accurately reflect that state when called from another thread.
     {
@@ skipping 42 matching lines @@
     v8::Handle<v8::Object> global = context->Global();
     global = global->FindInstanceInPrototypeChain(V8WorkerGlobalScope::domTemplate(isolate, WorkerWorld));
     // Return 0 if the current executing context is not the worker context.
     if (global.IsEmpty())
         return 0;
     WorkerGlobalScope* workerGlobalScope = V8WorkerGlobalScope::toNative(global);
     return workerGlobalScope->script();
 }
 
 } // namespace WebCore