Get rid of NULLs in xfa/

xfa/fxfa/parser/xfa_utils_imp.cpp

Index: xfa/fxfa/parser/xfa_utils_imp.cpp
diff --git a/xfa/fxfa/parser/xfa_utils_imp.cpp b/xfa/fxfa/parser/xfa_utils_imp.cpp
index d644880c4ccc4d2632157fe062f862a7ae26b256..23e6930cba249e89cf59b79d19bae69d522b4249 100644
--- a/xfa/fxfa/parser/xfa_utils_imp.cpp
+++ b/xfa/fxfa/parser/xfa_utils_imp.cpp
@@ -20,7 +20,7 @@ CXFA_Node* XFA_CreateUIChild(CXFA_Node* pNode, XFA_ELEMENT& eWidgetType) {
   XFA_ELEMENT eType = pNode->GetClassID();
   eWidgetType = eType;
   if (eType != XFA_ELEMENT_Field && eType != XFA_ELEMENT_Draw) {
-    return NULL;
+    return nullptr;
   }
   eWidgetType = XFA_ELEMENT_UNKNOWN;
   XFA_ELEMENT eUIType = XFA_ELEMENT_UNKNOWN;
@@ -58,7 +58,7 @@ CXFA_Node* XFA_CreateUIChild(CXFA_Node* pNode, XFA_ELEMENT& eWidgetType) {
     default:
       break;
   }
-  CXFA_Node* pUIChild = NULL;
+  CXFA_Node* pUIChild = nullptr;
   CXFA_Node* pUI = pNode->GetProperty(0, XFA_ELEMENT_Ui, TRUE);
   CXFA_Node* pChild = pUI->GetNodeItem(XFA_NODEITEM_FirstChild);
   for (; pChild; pChild = pChild->GetNodeItem(XFA_NODEITEM_NextSibling)) {
@@ -187,9 +187,9 @@ CXFA_LocaleValue XFA_GetLocaleValue(CXFA_WidgetData* pWidgetData) {
 }
 void XFA_GetPlainTextFromRichText(CFDE_XMLNode* pXMLNode,
                                   CFX_WideString& wsPlainText) {
-  if (pXMLNode == NULL) {
+  if (!pXMLNode)
     return;
-  }
+
   switch (pXMLNode->GetType()) {
     case FDE_XMLNODE_Element: {
       CFDE_XMLElement* pXMLElement = static_cast<CFDE_XMLElement*>(pXMLNode);