Fix encryption dictionary owning.

Return encryption dictionary as const reference
from CPDF_Parser.

Create a copy in CPDF_Creator if needed.

Change-Id: I270f71d307d818fba7f65ebe379f5942ae816934
Reviewed-on: https://pdfium-review.googlesource.com/38390
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Art Snake <art-snake@yandex-team.ru>

1 files changed, 1 insertions, 3 deletions

diff --git a/core/fpdfapi/parser/cpdf_parser.h b/core/fpdfapi/parser/cpdf_parser.h
index 92aaf7df6a..0af39d7529 100644
--- a/core/fpdfapi/parser/cpdf_parser.h
+++ b/core/fpdfapi/parser/cpdf_parser.h
@@ -78,7 +78,7 @@ class CPDF_Parser {
   const CPDF_Array* GetIDArray() const;
   CPDF_Dictionary* GetRoot() const;
 
-  CPDF_Dictionary* GetEncryptDict() const { return m_pEncryptDict.get(); }
+  const CPDF_Dictionary* GetEncryptDict() const;
 
   std::unique_ptr<CPDF_Object> ParseIndirectObject(uint32_t objnum);
 
@@ -141,7 +141,6 @@ class CPDF_Parser {
   Error LoadLinearizedMainXRefTable();
   const CPDF_ObjectStream* GetObjectStream(uint32_t object_number);
   std::unique_ptr<CPDF_LinearizedHeader> ParseLinearizedHeader();
-  void SetEncryptDictionary(const CPDF_Dictionary* pDict);
   void ShrinkObjectMap(uint32_t size);
   // A simple check whether the cross reference table matches with
   // the objects.
@@ -172,7 +171,6 @@ class CPDF_Parser {
   // m_CrossRefTable must be destroyed after m_pSecurityHandler due to the
   // ownership of the ID array data.
   std::unique_ptr<CPDF_CrossRefTable> m_CrossRefTable;
-  std::unique_ptr<CPDF_Dictionary> m_pEncryptDict;
   FX_FILESIZE m_LastXRefOffset;
   std::unique_ptr<CPDF_SecurityHandler> m_pSecurityHandler;
   ByteString m_Password;