Use std::vector as internal storage for CPDF_Array

core/fpdfdoc/doc_utils.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 <algorithm>
 #include <vector>
 
 #include "core/fpdfapi/fpdf_font/include/cpdf_font.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_simple_parser.h"
 #include "core/fpdfdoc/doc_utils.h"
 #include "core/fpdfdoc/include/fpdf_doc.h"
 #include "core/fxge/include/fx_font.h"
 
 namespace {
 
 const int FPDFDOC_UTILS_MAXRECURSION = 32;
 
 CPDF_Object* SearchNumberNode(const CPDF_Dictionary* pNode, int num) {
   CPDF_Array* pLimits = pNode->GetArrayBy("Limits");
   if (pLimits &&
       (num < pLimits->GetIntegerAt(0) || num > pLimits->GetIntegerAt(1))) {
     return NULL;
   }
   CPDF_Array* pNumbers = pNode->GetArrayBy("Nums");
   if (pNumbers) {
-    uint32_t dwCount = pNumbers->GetCount() / 2;
-    for (uint32_t i = 0; i < dwCount; i++) {
+    for (size_t i = 0; i < pNumbers->GetCount() / 2; i++) {
       int index = pNumbers->GetIntegerAt(i * 2);
       if (num == index) {
         return pNumbers->GetDirectObjectAt(i * 2 + 1);
       }
       if (index > num) {
         break;
       }
     }
     return NULL;
   }
   CPDF_Array* pKids = pNode->GetArrayBy("Kids");
   if (!pKids) {
     return NULL;
   }
-  for (uint32_t i = 0; i < pKids->GetCount(); i++) {
+  for (size_t i = 0; i < pKids->GetCount(); i++) {
     CPDF_Dictionary* pKid = pKids->GetDictAt(i);
     if (!pKid) {
       continue;
     }
     CPDF_Object* pFound = SearchNumberNode(pKid, num);
     if (pFound) {
       return pFound;
     }
   }
   return NULL;
@@ skipping 690 matching lines @@
   CPDF_Object* pAttr = pFieldDict->GetDirectObjectBy(name);
   if (pAttr) {
     return pAttr;
   }
   CPDF_Dictionary* pParent = pFieldDict->GetDictBy("Parent");
   if (!pParent) {
     return NULL;
   }
   return FPDF_GetFieldAttr(pParent, name, nLevel + 1);
 }