3 files changed, 3 insertions, 3 deletions
diff --git a/core/fpdfapi/font/cpdf_font.cpp b/core/fpdfapi/font/cpdf_font.cpp
index 2201e390ff..35fed75c87 100644
--- a/core/fpdfapi/font/cpdf_font.cpp
+++ b/core/fpdfapi/font/cpdf_font.cpp
@@ -277,7 +277,7 @@ void CPDF_Font::CheckFontMetrics() {
 
 void CPDF_Font::LoadUnicodeMap() const {
   m_bToUnicodeLoaded = true;
-  CPDF_Stream* pStream = m_pFontDict->GetStreamFor("ToUnicode");
+  const CPDF_Stream* pStream = m_pFontDict->GetStreamFor("ToUnicode");
   if (!pStream)
     return;
 
diff --git a/core/fpdfapi/font/cpdf_tounicodemap.cpp b/core/fpdfapi/font/cpdf_tounicodemap.cpp
index f21c4a31f4..7b5936c31e 100644
--- a/core/fpdfapi/font/cpdf_tounicodemap.cpp
+++ b/core/fpdfapi/font/cpdf_tounicodemap.cpp
@@ -122,7 +122,7 @@ uint32_t CPDF_ToUnicodeMap::GetUnicode() {
   return uni.ValueOrDefault(0);
 }
 
-void CPDF_ToUnicodeMap::Load(CPDF_Stream* pStream) {
+void CPDF_ToUnicodeMap::Load(const CPDF_Stream* pStream) {
   CIDSet cid_set = CIDSET_UNKNOWN;
   auto pAcc = pdfium::MakeRetain<CPDF_StreamAcc>(pStream);
   pAcc->LoadAllDataFiltered();
diff --git a/core/fpdfapi/font/cpdf_tounicodemap.h b/core/fpdfapi/font/cpdf_tounicodemap.h
index 62fc470c98..8f70791f97 100644
--- a/core/fpdfapi/font/cpdf_tounicodemap.h
+++ b/core/fpdfapi/font/cpdf_tounicodemap.h
@@ -20,7 +20,7 @@ class CPDF_ToUnicodeMap {
   CPDF_ToUnicodeMap();
   ~CPDF_ToUnicodeMap();
 
-  void Load(CPDF_Stream* pStream);
+  void Load(const CPDF_Stream* pStream);
 
   WideString Lookup(uint32_t charcode) const;
   uint32_t ReverseLookup(wchar_t unicode) const;