Add type cast definitions for CPDF_Name.

core/src/fpdfapi/fpdf_page/fpdf_page_graph_state.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 "../../../include/fpdfapi/fpdf_page.h"
 #include "../../../include/fpdfapi/fpdf_pageobj.h"
 #include "../../../include/fpdfapi/fpdf_module.h"
 #include "../../../include/fpdfapi/fpdf_render.h"
@@ skipping 492 matching lines @@
         CPDF_Array* pFont = (CPDF_Array*)pObject;
         m_TextState.GetModify()->m_FontSize = pFont->GetNumber(1);
         m_TextState.SetFont(pParser->FindFont(pFont->GetString(0)));
         break;
       }
       case FXBSTR_ID('T', 'R', 0, 0):
         if (pGS->KeyExist(FX_BSTRC("TR2"))) {
           continue;
         }
       case FXBSTR_ID('T', 'R', '2', 0):
-        if (pObject && pObject->GetType() != PDFOBJ_NAME) {
-          pGeneralState->m_pTR = pObject;
-        } else {
-          pGeneralState->m_pTR = NULL;
-        }
+        pGeneralState->m_pTR =
+            (pObject && !pObject->IsName()) ? pObject : nullptr;
         break;
       case FXBSTR_ID('B', 'M', 0, 0): {
         CFX_ByteString mode;
         if (pObject->GetType() == PDFOBJ_ARRAY) {
           mode = ((CPDF_Array*)pObject)->GetString(0);
         } else {
           mode = pObject->GetString();
         }
         pGeneralState->SetBlendMode(mode);
         if (pGeneralState->m_BlendType > FXDIB_BLEND_MULTIPLY) {
@@ skipping 151 matching lines @@
       pDict = NULL;
       if (item.GetParamType() == CPDF_ContentMarkItem::PropertiesDict ||
           item.GetParamType() == CPDF_ContentMarkItem::DirectDict) {
         pDict = ToDictionary(static_cast<CPDF_Object*>(item.GetParam()));
       }
       return TRUE;
     }
   }
   return FALSE;
 }