Rename GetElementValue() to GetDirectObject{By,At}().

core/fpdfapi/fpdf_font/cpdf_font.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
 
 #include "core/fpdfapi/fpdf_font/include/cpdf_font.h"
 
 #include "core/fpdfapi/fpdf_font/cpdf_truetypefont.h"
 #include "core/fpdfapi/fpdf_font/cpdf_type1font.h"
@@ skipping 434 matching lines @@
   if ((!bEmbedded || bTrueType) && iBaseEncoding == PDFFONT_ENCODING_BUILTIN) {
     iBaseEncoding = PDFFONT_ENCODING_STANDARD;
   }
   CPDF_Array* pDiffs = pDict->GetArrayBy("Differences");
   if (!pDiffs) {
     return;
   }
   pCharNames = new CFX_ByteString[256];
   uint32_t cur_code = 0;
   for (uint32_t i = 0; i < pDiffs->GetCount(); i++) {
-    CPDF_Object* pElement = pDiffs->GetElementValue(i);
+    CPDF_Object* pElement = pDiffs->GetDirectObjectAt(i);
     if (!pElement)
       continue;
 
     if (CPDF_Name* pName = pElement->AsName()) {
       if (cur_code < 256)
         pCharNames[cur_code] = pName->GetString();
       cur_code++;
     } else {
       cur_code = pElement->GetInteger();
     }
@@ skipping 17 matching lines @@
   if (charcode < 0 || charcode >= 256)
     return nullptr;
 
   const FX_CHAR* name = nullptr;
   if (pCharNames)
     name = pCharNames[charcode];
   if ((!name || name[0] == 0) && iBaseEncoding)
     name = PDF_CharNameFromPredefinedCharSet(iBaseEncoding, charcode);
   return name && name[0] ? name : nullptr;
 }