diff --git a/components/style/cbindgen.toml b/components/style/cbindgen.toml
index cda462d654e..fca08a8e2ea 100644
--- a/components/style/cbindgen.toml
+++ b/components/style/cbindgen.toml
@@ -90,14 +90,17 @@ item_types = ["enums", "structs", "typedefs"]
   // Defined in nsStyleCoord.h
   static constexpr inline StyleLengthPercentage Zero();
   static inline StyleLengthPercentage FromAppUnits(nscoord);
+  inline CSSCoord LengthInCSSPixels() const;
+ private:
+  inline nscoord LengthComponent() const;
+ public:
+  inline float Percentage() const;
   inline bool HasPercent() const;
   inline bool ConvertsToLength() const;
   inline nscoord ToLength() const;
   inline bool ConvertsToPercentage() const;
   inline bool HasLengthAndPercentage() const;
   inline float ToPercentage() const;
-  inline CSSCoord LengthInCSSPixels() const;
-  inline float Percentage() const;
   inline CSSCoord ResolveToCSSPixels(CSSCoord aPercentageBasisInCSSPixels) const;
   template<typename T> inline CSSCoord ResolveToCSSPixelsWith(T aPercentageGetter) const;
   inline nscoord Resolve(nscoord aPercentageBasis) const;