Move CPDF_Parser::ObjectType into protected section

Change-Id: I2a26647359a7d14d7d1269fe2835e0b3184f2ca8
Reviewed-on: https://pdfium-review.googlesource.com/13732
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: dsinclair <dsinclair@chromium.org>

1 files changed, 18 insertions, 14 deletions

diff --git a/core/fpdfapi/parser/cpdf_parser.cpp b/core/fpdfapi/parser/cpdf_parser.cpp
index 40d1b49ed6..336e6625b5 100644
--- a/core/fpdfapi/parser/cpdf_parser.cpp
+++ b/core/fpdfapi/parser/cpdf_parser.cpp
@@ -52,20 +52,6 @@ int32_t GetStreamFirst(const RetainPtr<CPDF_StreamAcc>& pObjStream) {
   return pObjStream->GetDict()->GetIntegerFor("First");
 }
 
-CPDF_Parser::ObjectType GetObjectTypeFromCrossRefStreamType(
-    int cross_ref_stream_type) {
-  switch (cross_ref_stream_type) {
-    case 0:
-      return CPDF_Parser::ObjectType::kFree;
-    case 1:
-      return CPDF_Parser::ObjectType::kNotCompressed;
-    case 2:
-      return CPDF_Parser::ObjectType::kCompressed;
-    default:
-      return CPDF_Parser::ObjectType::kNull;
-  }
-}
-
 }  // namespace
 
 class CPDF_Parser::TrailerData {
@@ -161,6 +147,10 @@ bool CPDF_Parser::IsObjectFreeOrNull(uint32_t objnum) const {
   return false;
 }
 
+bool CPDF_Parser::IsObjectFree(uint32_t objnum) const {
+  return GetObjectType(objnum) == ObjectType::kFree;
+}
+
 void CPDF_Parser::SetEncryptDictionary(CPDF_Dictionary* pDict) {
   m_pEncryptDict = pDict;
 }
@@ -1486,3 +1476,17 @@ CPDF_Parser::Error CPDF_Parser::LoadLinearizedMainXRefTable() {
 
   return SUCCESS;
 }
+
+CPDF_Parser::ObjectType CPDF_Parser::GetObjectTypeFromCrossRefStreamType(
+    int cross_ref_stream_type) const {
+  switch (cross_ref_stream_type) {
+    case 0:
+      return CPDF_Parser::ObjectType::kFree;
+    case 1:
+      return CPDF_Parser::ObjectType::kNotCompressed;
+    case 2:
+      return CPDF_Parser::ObjectType::kCompressed;
+    default:
+      return CPDF_Parser::ObjectType::kNull;
+  }
+}