Add some more consts to unowned pointers.

Ideally, unowned ptrs might well be const, as updating something
through an unowned reference is best avoided.

Change-Id: Ida8111ffe0ee1e30bbf6b7718b0929dfb5cafdff
Reviewed-on: https://pdfium-review.googlesource.com/36050
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/core/fpdfapi/page/cpdf_shadingpattern.h b/core/fpdfapi/page/cpdf_shadingpattern.h
index 3c68c818ea..d7aa1cb272 100644
--- a/core/fpdfapi/page/cpdf_shadingpattern.h
+++ b/core/fpdfapi/page/cpdf_shadingpattern.h
@@ -55,7 +55,7 @@ class CPDF_ShadingPattern : public CPDF_Pattern {
   ShadingType GetShadingType() const { return m_ShadingType; }
   bool IsShadingObject() const { return m_bShadingObj; }
   const CPDF_Object* GetShadingObject() const { return m_pShadingObj.Get(); }
-  CPDF_ColorSpace* GetCS() const { return m_pCS.Get(); }
+  const CPDF_ColorSpace* GetCS() const { return m_pCS.Get(); }
   const std::vector<std::unique_ptr<CPDF_Function>>& GetFuncs() const {
     return m_pFunctions;
   }
@@ -73,9 +73,9 @@ class CPDF_ShadingPattern : public CPDF_Pattern {
 
   // Still keep |m_pCS| as some CPDF_ColorSpace (name object) are not managed
   // as counted objects. Refer to CPDF_DocPageData::GetColorSpace.
-  UnownedPtr<CPDF_ColorSpace> m_pCS;
+  UnownedPtr<const CPDF_ColorSpace> m_pCS;
 
-  UnownedPtr<CPDF_CountedColorSpace> m_pCountedCS;
+  UnownedPtr<const CPDF_CountedColorSpace> m_pCountedCS;
   std::vector<std::unique_ptr<CPDF_Function>> m_pFunctions;
 };