Move toXYZD50() to SkColorSpace_Base

src/core/SkColorSpace_Base.h

Index: src/core/SkColorSpace_Base.h
diff --git a/src/core/SkColorSpace_Base.h b/src/core/SkColorSpace_Base.h
index 9382153967461b7fa8b417e20229c5d9598ac81a..07fa3832530d3357a45350043a5a3b2d41b41d52 100644
--- a/src/core/SkColorSpace_Base.h
+++ b/src/core/SkColorSpace_Base.h
@@ -189,6 +189,7 @@ public:
 
     const SkColorLookUpTable* colorLUT() const { return fColorLUT.get(); }
 
+    const SkMatrix44& toXYZD50() const { return fToXYZD50; }
     const SkMatrix44& fromXYZD50() const;
 
 private:
@@ -214,6 +215,7 @@ private:
     sk_sp<SkGammas>           fGammas;
     sk_sp<SkData>             fProfileData;
 
+    const SkMatrix44          fToXYZD50;
     mutable SkMatrix44        fFromXYZD50;
     mutable SkOnce            fFromXYZOnce;