Add type cast definitions for CPDF_Name.

core/src/fpdfapi/fpdf_font/fpdf_font.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_module.h"
 #include "../../../include/fpdfapi/fpdf_page.h"
 #include "../../../include/fpdfapi/fpdf_pageobj.h"
 #include "../../../include/fpdfapi/fpdf_resource.h"
@@ skipping 710 matching lines @@
                                 FX_BOOL bTrueType) {
   if (pEncoding == NULL) {
     if (m_BaseFont == FX_BSTRC("Symbol")) {
       iBaseEncoding = bTrueType ? PDFFONT_ENCODING_MS_SYMBOL
                                 : PDFFONT_ENCODING_ADOBE_SYMBOL;
     } else if (!bEmbedded && iBaseEncoding == PDFFONT_ENCODING_BUILTIN) {
       iBaseEncoding = PDFFONT_ENCODING_WINANSI;
     }
     return;
   }
-  if (pEncoding->GetType() == PDFOBJ_NAME) {
+  if (pEncoding->IsName()) {
     if (iBaseEncoding == PDFFONT_ENCODING_ADOBE_SYMBOL ||
         iBaseEncoding == PDFFONT_ENCODING_ZAPFDINGBATS) {
       return;
     }
     if ((m_Flags & PDFFONT_SYMBOLIC) && m_BaseFont == FX_BSTRC("Symbol")) {
       if (!bTrueType) {
         iBaseEncoding = PDFFONT_ENCODING_ADOBE_SYMBOL;
       }
       return;
     }
@@ skipping 21 matching lines @@
     iBaseEncoding = PDFFONT_ENCODING_STANDARD;
   }
   CPDF_Array* pDiffs = pDict->GetArray(FX_BSTRC("Differences"));
   if (pDiffs == NULL) {
     return;
   }
   pCharNames = new CFX_ByteString[256];
   FX_DWORD cur_code = 0;
   for (FX_DWORD i = 0; i < pDiffs->GetCount(); i++) {
     CPDF_Object* pElement = pDiffs->GetElementValue(i);
-    if (pElement == NULL) {
+    if (!pElement)
       continue;
-    }
-    if (pElement->GetType() == PDFOBJ_NAME) {
-      if (cur_code < 256) {
-        pCharNames[cur_code] = ((CPDF_Name*)pElement)->GetString();
-      }
+
+    if (CPDF_Name* pName = pElement->AsName()) {
+      if (cur_code < 256)
+        pCharNames[cur_code] = pName->GetString();
       cur_code++;
     } else {
       cur_code = pElement->GetInteger();
     }
   }
 }
 
 FX_BOOL CPDF_Font::IsStandardFont() const {
   if (m_FontType != PDFFONT_TYPE1)
     return FALSE;
@@ skipping 992 matching lines @@
 CPDF_Type3Char::CPDF_Type3Char() {
   m_pForm = NULL;
   m_pBitmap = NULL;
   m_bPageRequired = FALSE;
   m_bColored = FALSE;
 }
 CPDF_Type3Char::~CPDF_Type3Char() {
   delete m_pForm;
   delete m_pBitmap;
 }