Add type cast definitions for CPDF_Name.

core/src/fpdfapi/fpdf_parser/fpdf_parser_decode.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 <limits.h>
 #include "../../../include/fpdfapi/fpdf_parser.h"
 #include "../../../include/fpdfapi/fpdf_module.h"
 #include "../../../include/fxcodec/fx_codec.h"
@@ skipping 314 matching lines @@
                        uint8_t*& dest_buf,
                        FX_DWORD& dest_size,
                        CFX_ByteString& ImageEncoding,
                        CPDF_Dictionary*& pImageParms,
                        FX_DWORD last_estimated_size,
                        FX_BOOL bImageAcc)
 
 {
   CPDF_Object* pDecoder =
       pDict ? pDict->GetElementValue(FX_BSTRC("Filter")) : NULL;
-  if (pDecoder == NULL || (pDecoder->GetType() != PDFOBJ_ARRAY &&
-                           pDecoder->GetType() != PDFOBJ_NAME)) {
+  if (!pDecoder || (pDecoder->GetType() != PDFOBJ_ARRAY && !pDecoder->IsName()))
     return FALSE;
-  }
+
   CPDF_Object* pParams =
       pDict ? pDict->GetElementValue(FX_BSTRC("DecodeParms")) : NULL;
   CFX_ByteStringArray DecoderList;
   CFX_PtrArray ParamList;
   if (pDecoder->GetType() == PDFOBJ_ARRAY) {
     if (pParams && pParams->GetType() != PDFOBJ_ARRAY) {
       pParams = NULL;
     }
     CPDF_Array* pDecoders = (CPDF_Array*)pDecoder;
     for (FX_DWORD i = 0; i < pDecoders->GetCount(); i++) {
@@ skipping 229 matching lines @@
                      FX_DWORD src_size,
                      uint8_t*& dest_buf,
                      FX_DWORD& dest_size) {
   CCodec_ModuleMgr* pEncoders = CPDF_ModuleMgr::Get()->GetCodecModule();
   if (pEncoders) {
     return pEncoders->GetFlateModule()->FlateOrLZWDecode(
         FALSE, src_buf, src_size, FALSE, 0, 0, 0, 0, 0, dest_buf, dest_size);
   }
   return 0;
 }