Get rid of NULLs in fpdfsdk/

fpdfsdk/javascript/Icon.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "fpdfsdk/javascript/Icon.h"
 
 #include "fpdfsdk/javascript/JS_Define.h"
 #include "fpdfsdk/javascript/JS_Object.h"
 #include "fpdfsdk/javascript/JS_Value.h"
 
 BEGIN_JS_STATIC_CONST(CJS_Icon)
 END_JS_STATIC_CONST()
 
 BEGIN_JS_STATIC_PROP(CJS_Icon)
 JS_STATIC_PROP_ENTRY(name)
 END_JS_STATIC_PROP()
 
 BEGIN_JS_STATIC_METHOD(CJS_Icon)
 END_JS_STATIC_METHOD()
 
 IMPLEMENT_JS_CLASS(CJS_Icon, Icon)
 
 Icon::Icon(CJS_Object* pJSObject)
-    : CJS_EmbedObj(pJSObject), m_pIconStream(NULL), m_swIconName(L"") {}
+    : CJS_EmbedObj(pJSObject), m_pIconStream(nullptr), m_swIconName(L"") {}
 
 Icon::~Icon() {}
 
 void Icon::SetStream(CPDF_Stream* pIconStream) {
   if (pIconStream)
     m_pIconStream = pIconStream;
 }
 
 CPDF_Stream* Icon::GetStream() {
   return m_pIconStream;
 }
 
 void Icon::SetIconName(CFX_WideString name) {
   m_swIconName = name;
 }
 
 CFX_WideString Icon::GetIconName() {
   return m_swIconName;
 }
 
 FX_BOOL Icon::name(IJS_Context* cc, CJS_PropValue& vp, CFX_WideString& sError) {
   if (!vp.IsGetting())
     return FALSE;
 
   vp << m_swIconName;
   return TRUE;
 }