Mark more CPDF_Objects as const in font code.

Change-Id: Id37333ba61ad0d395055acffd75d4d8be5eb2b3e
Reviewed-on: https://pdfium-review.googlesource.com/32911
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

2 files changed, 3 insertions, 2 deletions

diff --git a/core/fpdfapi/parser/cpdf_document.cpp b/core/fpdfapi/parser/cpdf_document.cpp
index 982539cd72..5264d4e795 100644
--- a/core/fpdfapi/parser/cpdf_document.cpp
+++ b/core/fpdfapi/parser/cpdf_document.cpp
@@ -475,7 +475,8 @@ CPDF_Font* CPDF_Document::LoadFont(CPDF_Dictionary* pFontDict) {
   return m_pDocPage->GetFont(pFontDict);
 }
 
-RetainPtr<CPDF_StreamAcc> CPDF_Document::LoadFontFile(CPDF_Stream* pStream) {
+RetainPtr<CPDF_StreamAcc> CPDF_Document::LoadFontFile(
+    const CPDF_Stream* pStream) {
   return m_pDocPage->GetFontFileStreamAcc(pStream);
 }
 
diff --git a/core/fpdfapi/parser/cpdf_document.h b/core/fpdfapi/parser/cpdf_document.h
index 4bbc6939e2..b169175668 100644
--- a/core/fpdfapi/parser/cpdf_document.h
+++ b/core/fpdfapi/parser/cpdf_document.h
@@ -91,7 +91,7 @@ class CPDF_Document : public CPDF_IndirectObjectHolder {
                             const CFX_Matrix& matrix);
 
   RetainPtr<CPDF_Image> LoadImageFromPageData(uint32_t dwStreamObjNum);
-  RetainPtr<CPDF_StreamAcc> LoadFontFile(CPDF_Stream* pStream);
+  RetainPtr<CPDF_StreamAcc> LoadFontFile(const CPDF_Stream* pStream);
   RetainPtr<CPDF_IccProfile> LoadIccProfile(const CPDF_Stream* pStream);
 
   void LoadDoc();