Fix the typo of "Resources" keyword

core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.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_parser.h"
 #include "../../../include/fpdfapi/fpdf_module.h"
 #include "../../../include/fpdfapi/fpdf_page.h"
 #include "../../../../third_party/numerics/safe_math.h"
@@ skipping 4163 matching lines @@
 FX_BOOL CPDF_DataAvail::HaveResourceAncestor(CPDF_Dictionary *pDict)
 {
     CPDF_Object *pParent = pDict->GetElement("Parent");
     if (!pParent) {
         return FALSE;
     }
     CPDF_Dictionary *pParentDict = pParent->GetDict();
     if (!pParentDict) {
         return FALSE;
     }
-    CPDF_Object *pRet = pParentDict->GetElement("Resource");
+    CPDF_Object *pRet = pParentDict->GetElement("Resources");
     if (pRet) {
         m_pPageResource = pRet;
         return TRUE;
     } else {
         return HaveResourceAncestor(pParentDict);
     }
 }
 FX_BOOL CPDF_DataAvail::IsPageAvail(FX_INT32 iPage, IFX_DownloadHints* pHints)
 {
     if (!m_pDocument) {
@@ skipping 85 matching lines @@
     }
     if (m_bPageLoadedOK) {
         if (!m_bAnnotsLoad) {
             if (!CheckPageAnnots(iPage, pHints)) {
                 return FALSE;
             }
             m_bAnnotsLoad = TRUE;
         }
     }
     if (m_pPageDict && !m_bNeedDownLoadResource) {
-        CPDF_Object *pRes = m_pPageDict->GetElement("Resource");
-        if (!pRes) {
+        m_pPageResource = m_pPageDict->GetElement("Resources");
+        if (!m_pPageResource) {
             m_bNeedDownLoadResource = HaveResourceAncestor(m_pPageDict);
+        } else {
+            m_bNeedDownLoadResource = TRUE;
         }
-        m_bNeedDownLoadResource = FALSE;
     }
     if (m_bNeedDownLoadResource) {
         FX_BOOL bRet = CheckResources(pHints);
         if (!bRet) {
             return FALSE;
         }
         m_bNeedDownLoadResource = FALSE;
     }
     m_bPageLoadedOK = FALSE;
     m_bAnnotsLoad = FALSE;
@@ skipping 100 matching lines @@
 {
     FX_INT32 iSize = m_childNode.GetSize();
     for (FX_INT32 i = 0; i < iSize; ++i) {
         CPDF_PageNode *pNode = (CPDF_PageNode*)m_childNode[i];
         if (pNode) {
             delete pNode;
         }
     }
     m_childNode.RemoveAll();
 }