Use nullptr instead of 0 in xml and xmlhttprequest.

Source/core/xml/XSLTProcessorLibxslt.cpp

 /*
  * This file is part of the XSL implementation.
  *
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple, Inc. All rights reserved.
  * Copyright (C) 2005, 2006 Alexey Proskuryakov <ap@webkit.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 65 matching lines @@
     case XML_ERR_FATAL:
     default:
         level = ErrorMessageLevel;
         break;
     }
 
     console->addMessage(ConsoleMessage::create(XMLMessageSource, level, error->message, error->file, error->line));
 }
 
 // FIXME: There seems to be no way to control the ctxt pointer for loading here, thus we have globals.
-static XSLTProcessor* globalProcessor = 0;
-static ResourceFetcher* globalResourceFetcher = 0;
+static XSLTProcessor* globalProcessor = nullptr;
+static ResourceFetcher* globalResourceFetcher = nullptr;
 
 static xmlDocPtr docLoaderFunc(
     const xmlChar* uri, xmlDictPtr, int options, void* ctxt, xsltLoadType type)
 {
     if (!globalProcessor)
-        return 0;
+        return nullptr;
 
     switch (type) {
     case XSLT_LOAD_DOCUMENT: {
         xsltTransformContextPtr context = (xsltTransformContextPtr)ctxt;
         xmlChar* base = xmlNodeGetBase(context->document->doc, context->node);
         KURL url(KURL(ParsedURLString, reinterpret_cast<const char*>(base)), reinterpret_cast<const char*>(uri));
         xmlFree(base);
 
         ResourceLoaderOptions fetchOptions(ResourceFetcher::defaultResourceOptions());
         FetchRequest request(ResourceRequest(url), FetchInitiatorTypeNames::xml, fetchOptions);
         request.setOriginRestriction(FetchRequest::RestrictToSameOrigin);
         ResourcePtr<Resource> resource = globalResourceFetcher->fetchSynchronously(request);
         if (!resource || !globalProcessor)
-            return 0;
+            return nullptr;
 
-        FrameConsole* console = 0;
+        FrameConsole* console = nullptr;
         LocalFrame* frame = globalProcessor->xslStylesheet()->ownerDocument()->frame();
         if (frame)
             console = &frame->console();
         xmlSetStructuredErrorFunc(console, XSLTProcessor::parseErrorFunc);
         xmlSetGenericErrorFunc(console, XSLTProcessor::genericErrorFunc);
 
         // We don't specify an encoding here. Neither Gecko nor WinIE respects
         // the encoding specified in the HTTP headers.
         SharedBuffer* data = resource->resourceBuffer();
-        xmlDocPtr doc = data ? xmlReadMemory(data->data(), data->size(), (const char*)uri, 0, options) : 0;
+        xmlDocPtr doc = data ? xmlReadMemory(data->data(), data->size(), (const char*)uri, 0, options) : nullptr;
 
         xmlSetStructuredErrorFunc(0, 0);
         xmlSetGenericErrorFunc(0, 0);
 
         return doc;
     }
     case XSLT_LOAD_STYLESHEET:
         return globalProcessor->xslStylesheet()->locateStylesheetSubResource(((xsltStylesheetPtr)ctxt)->doc, uri);
     default:
         break;
     }
 
-    return 0;
+    return nullptr;
 }
 
 static inline void setXSLTLoadCallBack(xsltDocLoaderFunc func, XSLTProcessor* processor, ResourceFetcher* fetcher)
 {
     xsltSetLoaderFunc(func);
     globalProcessor = processor;
     globalResourceFetcher = fetcher;
 }
 
 static int writeToStringBuilder(void* context, const char* buffer, int len)
@@ skipping 40 matching lines @@
         resultBuilder.resize(resultBuilder.length() - 1);
 
     resultString = resultBuilder.toString();
 
     return true;
 }
 
 static const char** xsltParamArrayFromParameterMap(XSLTProcessor::ParameterMap& parameters)
 {
     if (parameters.isEmpty())
-        return 0;
+        return nullptr;
 
     const char** parameterArray = static_cast<const char**>(fastMalloc(((parameters.size() * 2) + 1) * sizeof(char*)));
 
     unsigned index = 0;
     for (auto& parameter : parameters) {
         parameterArray[index++] = fastStrDup(parameter.key.utf8().data());
         parameterArray[index++] = fastStrDup(parameter.value.utf8().data());
     }
     parameterArray[index] = 0;
 
@@ skipping 23 matching lines @@
             stylesheetRootNode->document().url().string(),
             stylesheetRootNode->document().url()); // FIXME: Should we use baseURL here?
 
         // According to Mozilla documentation, the node must be a Document node,
         // an xsl:stylesheet or xsl:transform element. But we just use text
         // content regardless of node type.
         cachedStylesheet->parseString(createMarkup(stylesheetRootNode));
     }
 
     if (!cachedStylesheet || !cachedStylesheet->document())
-        return 0;
+        return nullptr;
 
     return cachedStylesheet->compileStyleSheet();
 }
 
 static inline xmlDocPtr xmlDocPtrFromNode(Node* sourceNode, bool& shouldDelete)
 {
     RefPtrWillBeRawPtr<Document> ownerDocument(sourceNode->document());
     bool sourceIsDocument = (sourceNode == ownerDocument.get());
 
-    xmlDocPtr sourceDoc = 0;
+    xmlDocPtr sourceDoc = nullptr;
     if (sourceIsDocument && ownerDocument->transformSource())
         sourceDoc = (xmlDocPtr)ownerDocument->transformSource()->platformSource();
     if (!sourceDoc) {
         sourceDoc = (xmlDocPtr)xmlDocPtrForString(ownerDocument.get(), createMarkup(sourceNode),
             sourceIsDocument ? ownerDocument->url().string() : String());
         shouldDelete = sourceDoc;
     }
     return sourceDoc;
 }
 
 static inline String resultMIMEType(xmlDocPtr resultDoc, xsltStylesheetPtr sheet)
 {
     // There are three types of output we need to be able to deal with:
     // HTML (create an HTML document), XML (create an XML document),
     // and text (wrap in a <pre> and create an XML document).
 
-    const xmlChar* resultType = 0;
+    const xmlChar* resultType = nullptr;
     XSLT_GET_IMPORT_PTR(resultType, sheet, method);
     if (!resultType && resultDoc->type == XML_HTML_DOCUMENT_NODE)
         resultType = (const xmlChar*)"html";
 
     if (xmlStrEqual(resultType, (const xmlChar*)"html"))
         return "text/html";
     if (xmlStrEqual(resultType, (const xmlChar*)"text"))
         return "text/plain";
 
     return "application/xml";
@@ skipping 69 matching lines @@
 
     sheet->method = origMethod;
     setXSLTLoadCallBack(0, 0, 0);
     xsltFreeStylesheet(sheet);
     m_stylesheet = nullptr;
 
     return success;
 }
 
 } // namespace blink