Clean up C-Style casts in CBC_CodeBase and subclasses

xfa/fxbarcode/cbc_codebase.cpp

 // Copyright 2016 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
 /*
  * Copyright 2011 ZXing authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 
 #include "xfa/fxbarcode/cbc_codebase.h"
 
+#include "xfa/fxbarcode/BC_Reader.h"
 #include "xfa/fxbarcode/BC_Writer.h"
 
-CBC_CodeBase::CBC_CodeBase() {}
+CBC_CodeBase::CBC_CodeBase(CBC_Reader* pReader, CBC_Writer* pWriter)
+    : m_pBCReader(pReader), m_pBCWriter(pWriter) {}
 
 CBC_CodeBase::~CBC_CodeBase() {}
 
 FX_BOOL CBC_CodeBase::SetCharEncoding(int32_t encoding) {
   return m_pBCWriter && m_pBCWriter->SetCharEncoding(encoding);
 }
 
 FX_BOOL CBC_CodeBase::SetModuleHeight(int32_t moduleHeight) {
   return m_pBCWriter && m_pBCWriter->SetModuleHeight(moduleHeight);
 }
@@ skipping 12 matching lines @@
 
 void CBC_CodeBase::SetBackgroundColor(FX_ARGB backgroundColor) {
   if (m_pBCWriter)
     m_pBCWriter->SetBackgroundColor(backgroundColor);
 }
 
 void CBC_CodeBase::SetBarcodeColor(FX_ARGB foregroundColor) {
   if (m_pBCWriter)
     m_pBCWriter->SetBarcodeColor(foregroundColor);
 }