Properly land "Fix hint table loading issues."

core/include/fxcrt/fx_basic.h

Index: core/include/fxcrt/fx_basic.h
diff --git a/core/include/fxcrt/fx_basic.h b/core/include/fxcrt/fx_basic.h
index 5d3fc33d6f4b29900beac290ba1aa9aec3015484..8a39729fd085fc28690ddc52541c1e9ca19441d8 100644
--- a/core/include/fxcrt/fx_basic.h
+++ b/core/include/fxcrt/fx_basic.h
@@ -811,9 +811,9 @@ class CFX_BitStream {
 
   void Rewind() { m_BitPos = 0; }
 
-  FX_DWORD GetPos() { return m_BitPos; }
+  FX_DWORD GetPos() const { return m_BitPos; }
 
-  FX_DWORD BitsRemaining() {
+  FX_DWORD BitsRemaining() const {
     return m_BitSize >= m_BitPos ? m_BitSize - m_BitPos : 0;
   }