Add m-esr52 at 52.6.0

1 files changed, 649 insertions, 0 deletions

diff --git a/layout/style/nsStyleCoord.h b/layout/style/nsStyleCoord.h
new file mode 100644
index 000000000..3489a75c8
--- /dev/null
+++ b/layout/style/nsStyleCoord.h
@@ -0,0 +1,649 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* representation of length values in computed style data */
+
+#ifndef nsStyleCoord_h___
+#define nsStyleCoord_h___
+
+#include "nsCoord.h"
+#include "nsStyleConsts.h"
+
+namespace mozilla {
+
+class WritingMode;
+
+// Logical axis, edge and side constants for use in various places.
+enum LogicalAxis {
+  eLogicalAxisBlock  = 0x0,
+  eLogicalAxisInline = 0x1
+};
+enum LogicalEdge {
+  eLogicalEdgeStart  = 0x0,
+  eLogicalEdgeEnd    = 0x1
+};
+enum LogicalSide {
+  eLogicalSideBStart = (eLogicalAxisBlock  << 1) | eLogicalEdgeStart,  // 0x0
+  eLogicalSideBEnd   = (eLogicalAxisBlock  << 1) | eLogicalEdgeEnd,    // 0x1
+  eLogicalSideIStart = (eLogicalAxisInline << 1) | eLogicalEdgeStart,  // 0x2
+  eLogicalSideIEnd   = (eLogicalAxisInline << 1) | eLogicalEdgeEnd     // 0x3
+};
+
+} // namespace mozilla
+
+enum nsStyleUnit : uint8_t {
+  eStyleUnit_Null         = 0,      // (no value) value is not specified
+  eStyleUnit_Normal       = 1,      // (no value)
+  eStyleUnit_Auto         = 2,      // (no value)
+  eStyleUnit_None         = 3,      // (no value)
+  eStyleUnit_Percent      = 10,     // (float) 1.0 == 100%
+  eStyleUnit_Factor       = 11,     // (float) a multiplier
+  eStyleUnit_Degree       = 12,     // (float) angle in degrees
+  eStyleUnit_Grad         = 13,     // (float) angle in grads
+  eStyleUnit_Radian       = 14,     // (float) angle in radians
+  eStyleUnit_Turn         = 15,     // (float) angle in turns
+  eStyleUnit_FlexFraction = 16,     // (float) <flex> in fr units
+  eStyleUnit_Coord        = 20,     // (nscoord) value is twips
+  eStyleUnit_Integer      = 30,     // (int) value is simple integer
+  eStyleUnit_Enumerated   = 32,     // (int) value has enumerated meaning
+
+  // The following are reference counted allocated types.
+  eStyleUnit_Calc         = 40,     // (Calc*) calc() toplevel; always present
+                                    // to distinguish 50% from calc(50%), etc.
+
+  eStyleUnit_MAX          = 40      // highest valid nsStyleUnit value
+};
+
+typedef union {
+  int32_t     mInt;   // nscoord is a int32_t for now
+  float       mFloat;
+  // An mPointer is a reference counted pointer.  Currently this can only
+  // ever be an nsStyleCoord::Calc*.
+  void*       mPointer;
+} nsStyleUnion;
+
+/**
+ * Class that hold a single size specification used by the style
+ * system.  The size specification consists of two parts -- a number
+ * and a unit.  The number is an integer, a floating point value, an
+ * nscoord, or undefined, and the unit is an nsStyleUnit.  Checking
+ * the unit is a must before asking for the value in any particular
+ * form.
+ */
+ /** <div rustbindgen private accessor="unsafe"></div> */
+class nsStyleCoord {
+public:
+  // Non-reference counted calc() value.  See nsStyleStruct.h for some uses
+  // of this.
+  struct CalcValue {
+    // Every calc() expression evaluates to a length plus a percentage.
+    nscoord mLength;
+    float mPercent;
+    bool mHasPercent; // whether there was any % syntax, even if 0
+
+    bool operator==(const CalcValue& aOther) const {
+      return mLength == aOther.mLength &&
+             mPercent == aOther.mPercent &&
+             mHasPercent == aOther.mHasPercent;
+    }
+    bool operator!=(const CalcValue& aOther) const {
+      return !(*this == aOther);
+    }
+
+    nscoord ToLength() const {
+      MOZ_ASSERT(!mHasPercent);
+      return mLength;
+    }
+
+    // If this returns true the value is definitely zero. It it returns false
+    // it might be zero. So it's best used for conservative optimization.
+    bool IsDefinitelyZero() const { return mLength == 0 && mPercent == 0; }
+  };
+
+  // Reference counted calc() value.  This is the type that is used to store
+  // the calc() value in nsStyleCoord.
+  struct Calc final : public CalcValue {
+    NS_INLINE_DECL_THREADSAFE_REFCOUNTING(Calc)
+    Calc() {}
+
+  private:
+    Calc(const Calc&) = delete;
+    ~Calc() {}
+    Calc& operator=(const Calc&) = delete;
+  };
+
+  explicit nsStyleCoord(nsStyleUnit aUnit = eStyleUnit_Null);
+  enum CoordConstructorType { CoordConstructor };
+  inline nsStyleCoord(nscoord aValue, CoordConstructorType);
+  nsStyleCoord(int32_t aValue, nsStyleUnit aUnit);
+  nsStyleCoord(float aValue, nsStyleUnit aUnit);
+  inline nsStyleCoord(const nsStyleCoord& aCopy);
+  inline nsStyleCoord(const nsStyleUnion& aValue, nsStyleUnit aUnit);
+  ~nsStyleCoord() { Reset(); }
+
+  nsStyleCoord&  operator=(const nsStyleCoord& aOther)
+  {
+    if (this != &aOther) {
+      SetValue(mUnit, mValue, aOther);
+    }
+    return *this;
+  }
+  bool           operator==(const nsStyleCoord& aOther) const;
+  bool           operator!=(const nsStyleCoord& aOther) const;
+
+  nsStyleUnit GetUnit() const {
+    NS_ASSERTION(mUnit != eStyleUnit_Null, "reading uninitialized value");
+    return mUnit;
+  }
+
+  bool IsAngleValue() const {
+    return eStyleUnit_Degree <= mUnit && mUnit <= eStyleUnit_Turn;
+  }
+
+  static bool IsCalcUnit(nsStyleUnit aUnit) {
+    return aUnit == eStyleUnit_Calc;
+  }
+
+  static bool IsPointerUnit(nsStyleUnit aUnit) {
+    return IsCalcUnit(aUnit);
+  }
+
+  bool IsCalcUnit() const {
+    return IsCalcUnit(mUnit);
+  }
+
+  bool IsPointerValue() const {
+    return IsPointerUnit(mUnit);
+  }
+
+  bool IsCoordPercentCalcUnit() const {
+    return mUnit == eStyleUnit_Coord ||
+           mUnit == eStyleUnit_Percent ||
+           IsCalcUnit();
+  }
+
+  // Does this calc() expression have any percentages inside it?  Can be
+  // called only when IsCalcUnit() is true.
+  bool CalcHasPercent() const {
+    return GetCalcValue()->mHasPercent;
+  }
+
+  bool HasPercent() const {
+    return mUnit == eStyleUnit_Percent ||
+           (IsCalcUnit() && CalcHasPercent());
+  }
+
+  static bool ConvertsToLength(const nsStyleUnit aUnit,
+                               const nsStyleUnion aValue) {
+    return aUnit == eStyleUnit_Coord ||
+           (IsCalcUnit(aUnit) && !AsCalcValue(aValue)->mHasPercent);
+  }
+
+  bool ConvertsToLength() const {
+    return ConvertsToLength(mUnit, mValue);
+  }
+
+  static nscoord ToLength(nsStyleUnit aUnit, nsStyleUnion aValue) {
+    MOZ_ASSERT(ConvertsToLength(aUnit, aValue));
+    if (IsCalcUnit(aUnit)) {
+      return AsCalcValue(aValue)->ToLength(); // Note: This asserts !mHasPercent
+    }
+    MOZ_ASSERT(aUnit == eStyleUnit_Coord);
+    return aValue.mInt;
+  }
+
+  nscoord ToLength() const {
+    return ToLength(GetUnit(), mValue);
+  }
+
+  // Callers must verify IsCalcUnit before calling this function.
+  static Calc* AsCalcValue(nsStyleUnion aValue) {
+    return static_cast<Calc*>(aValue.mPointer);
+  }
+
+  nscoord     GetCoordValue() const;
+  int32_t     GetIntValue() const;
+  float       GetPercentValue() const;
+  float       GetFactorValue() const;
+  float       GetFactorOrPercentValue() const;
+  float       GetAngleValue() const;
+  double      GetAngleValueInDegrees() const;
+  double      GetAngleValueInRadians() const;
+  float       GetFlexFractionValue() const;
+  Calc*       GetCalcValue() const;
+  uint32_t    HashValue(uint32_t aHash) const;
+
+  // Sets to null and releases any refcounted objects.  Only use this if the
+  // object is initialized (i.e. don't use it in nsStyleCoord constructors).
+  void Reset();
+
+  void  SetCoordValue(nscoord aValue);
+  void  SetIntValue(int32_t aValue, nsStyleUnit aUnit);
+  void  SetPercentValue(float aValue);
+  void  SetFactorValue(float aValue);
+  void  SetAngleValue(float aValue, nsStyleUnit aUnit);
+  void  SetFlexFractionValue(float aValue);
+  void  SetNormalValue();
+  void  SetAutoValue();
+  void  SetNoneValue();
+  void  SetCalcValue(Calc* aValue);
+
+  // Resets a coord represented by a unit/value pair.
+  static inline void Reset(nsStyleUnit& aUnit, nsStyleUnion& aValue);
+
+  // Sets a coord represented by a unit/value pair from a second
+  // unit/value pair.
+  static inline void SetValue(nsStyleUnit& aUnit,
+                              nsStyleUnion& aValue,
+                              nsStyleUnit aOtherUnit,
+                              const nsStyleUnion& aOtherValue);
+
+  // Sets a coord represented by a unit/value pair from an nsStyleCoord.
+  static inline void SetValue(nsStyleUnit& aUnit, nsStyleUnion& aValue,
+                              const nsStyleCoord& aOther);
+
+  // Like the above, but do not reset before setting.
+  static inline void InitWithValue(nsStyleUnit& aUnit,
+                                   nsStyleUnion& aValue,
+                                   nsStyleUnit aOtherUnit,
+                                   const nsStyleUnion& aOtherValue);
+
+  static inline void InitWithValue(nsStyleUnit& aUnit, nsStyleUnion& aValue,
+                                   const nsStyleCoord& aOther);
+
+private:
+  nsStyleUnit   mUnit;
+  nsStyleUnion  mValue;
+};
+
+/**
+ * Class that represents a set of top/right/bottom/left nsStyleCoords.
+ * This is commonly used to hold the widths of the borders, margins,
+ * or paddings of a box.
+ */
+ /** <div rustbindgen private accessor="unsafe"></div> */
+class nsStyleSides {
+public:
+  nsStyleSides();
+  nsStyleSides(const nsStyleSides&);
+  ~nsStyleSides();
+
+  nsStyleSides&  operator=(const nsStyleSides& aCopy);
+  bool           operator==(const nsStyleSides& aOther) const;
+  bool           operator!=(const nsStyleSides& aOther) const;
+
+  inline nsStyleUnit GetUnit(mozilla::css::Side aSide) const;
+  inline nsStyleUnit GetLeftUnit() const;
+  inline nsStyleUnit GetTopUnit() const;
+  inline nsStyleUnit GetRightUnit() const;
+  inline nsStyleUnit GetBottomUnit() const;
+
+  inline nsStyleCoord Get(mozilla::css::Side aSide) const;
+  inline nsStyleCoord GetLeft() const;
+  inline nsStyleCoord GetTop() const;
+  inline nsStyleCoord GetRight() const;
+  inline nsStyleCoord GetBottom() const;
+
+  // Methods to access the units and values in terms of logical sides
+  // for a given writing mode.
+  // NOTE: The definitions are in WritingModes.h (after we have the full
+  // declaration of WritingMode available).
+  inline nsStyleUnit GetUnit(mozilla::WritingMode aWritingMode,
+                             mozilla::LogicalSide aSide) const;
+  inline nsStyleUnit GetIStartUnit(mozilla::WritingMode aWritingMode) const;
+  inline nsStyleUnit GetBStartUnit(mozilla::WritingMode aWritingMode) const;
+  inline nsStyleUnit GetIEndUnit(mozilla::WritingMode aWritingMode) const;
+  inline nsStyleUnit GetBEndUnit(mozilla::WritingMode aWritingMode) const;
+
+  // Return true if either the start or end side in the axis is 'auto'.
+  inline bool HasBlockAxisAuto(mozilla::WritingMode aWritingMode) const;
+  inline bool HasInlineAxisAuto(mozilla::WritingMode aWritingMode) const;
+
+  inline nsStyleCoord Get(mozilla::WritingMode aWritingMode,
+                          mozilla::LogicalSide aSide) const;
+  inline nsStyleCoord GetIStart(mozilla::WritingMode aWritingMode) const;
+  inline nsStyleCoord GetBStart(mozilla::WritingMode aWritingMode) const;
+  inline nsStyleCoord GetIEnd(mozilla::WritingMode aWritingMode) const;
+  inline nsStyleCoord GetBEnd(mozilla::WritingMode aWritingMode) const;
+
+  // Sets each side to null and releases any refcounted objects.  Only use this
+  // if the object is initialized (i.e. don't use it in nsStyleSides
+  // constructors).
+  void Reset();
+
+  inline void Set(mozilla::css::Side aSide, const nsStyleCoord& aCoord);
+  inline void SetLeft(const nsStyleCoord& aCoord);
+  inline void SetTop(const nsStyleCoord& aCoord);
+  inline void SetRight(const nsStyleCoord& aCoord);
+  inline void SetBottom(const nsStyleCoord& aCoord);
+
+  nscoord ToLength(mozilla::css::Side aSide) const {
+    return nsStyleCoord::ToLength(mUnits[aSide], mValues[aSide]);
+  }
+
+  bool ConvertsToLength() const {
+    NS_FOR_CSS_SIDES(side) {
+      if (!nsStyleCoord::ConvertsToLength(mUnits[side], mValues[side])) {
+        return false;
+      }
+    }
+    return true;
+  }
+
+protected:
+  nsStyleUnit   mUnits[4];
+  nsStyleUnion  mValues[4];
+};
+
+/**
+ * Class that represents a set of top-left/top-right/bottom-right/bottom-left
+ * nsStyleCoord pairs.  This is used to hold the dimensions of the
+ * corners of a box (for, e.g., border-radius and outline-radius).
+ */
+ /** <div rustbindgen private accessor="unsafe"></div> */
+class nsStyleCorners {
+public:
+  nsStyleCorners();
+  nsStyleCorners(const nsStyleCorners&);
+  ~nsStyleCorners();
+
+  // use compiler's version
+  nsStyleCorners& operator=(const nsStyleCorners& aCopy);
+  bool           operator==(const nsStyleCorners& aOther) const;
+  bool           operator!=(const nsStyleCorners& aOther) const;
+
+  // aCorner is always one of NS_CORNER_* defined in nsStyleConsts.h
+  inline nsStyleUnit GetUnit(uint8_t aHalfCorner) const;
+
+  inline nsStyleCoord Get(uint8_t aHalfCorner) const;
+
+  // Sets each corner to null and releases any refcounted objects.  Only use
+  // this if the object is initialized (i.e. don't use it in nsStyleCorners
+  // constructors).
+  void Reset();
+
+  inline void Set(uint8_t aHalfCorner, const nsStyleCoord& aCoord);
+
+protected:
+  // Stored as:
+  // top-left.x, top-left.y,
+  // top-right.x, top-right.y,
+  // bottom-right.x, bottom-right.y,
+  // bottom-left.x, bottom-left.y
+  nsStyleUnit   mUnits[8];
+  nsStyleUnion  mValues[8];
+};
+
+
+// -------------------------
+// nsStyleCoord inlines
+//
+inline nsStyleCoord::nsStyleCoord(nscoord aValue, CoordConstructorType)
+  : mUnit(eStyleUnit_Coord)
+{
+  mValue.mInt = aValue;
+}
+
+inline nsStyleCoord::nsStyleCoord(const nsStyleCoord& aCopy)
+  : mUnit(eStyleUnit_Null)
+{
+  InitWithValue(mUnit, mValue, aCopy);
+}
+
+inline nsStyleCoord::nsStyleCoord(const nsStyleUnion& aValue, nsStyleUnit aUnit)
+  : mUnit(eStyleUnit_Null)
+{
+  InitWithValue(mUnit, mValue, aUnit, aValue);
+}
+
+inline bool nsStyleCoord::operator!=(const nsStyleCoord& aOther) const
+{
+  return !((*this) == aOther);
+}
+
+inline nscoord nsStyleCoord::GetCoordValue() const
+{
+  NS_ASSERTION((mUnit == eStyleUnit_Coord), "not a coord value");
+  if (mUnit == eStyleUnit_Coord) {
+    return mValue.mInt;
+  }
+  return 0;
+}
+
+inline int32_t nsStyleCoord::GetIntValue() const
+{
+  NS_ASSERTION((mUnit == eStyleUnit_Enumerated) ||
+               (mUnit == eStyleUnit_Integer), "not an int value");
+  if ((mUnit == eStyleUnit_Enumerated) ||
+      (mUnit == eStyleUnit_Integer)) {
+    return mValue.mInt;
+  }
+  return 0;
+}
+
+inline float nsStyleCoord::GetPercentValue() const
+{
+  NS_ASSERTION(mUnit == eStyleUnit_Percent, "not a percent value");
+  if (mUnit == eStyleUnit_Percent) {
+    return mValue.mFloat;
+  }
+  return 0.0f;
+}
+
+inline float nsStyleCoord::GetFactorValue() const
+{
+  NS_ASSERTION(mUnit == eStyleUnit_Factor, "not a factor value");
+  if (mUnit == eStyleUnit_Factor) {
+    return mValue.mFloat;
+  }
+  return 0.0f;
+}
+
+inline float nsStyleCoord::GetFactorOrPercentValue() const
+{
+  NS_ASSERTION(mUnit == eStyleUnit_Factor || mUnit == eStyleUnit_Percent,
+               "not a percent or factor value");
+  if (mUnit == eStyleUnit_Factor || mUnit == eStyleUnit_Percent) {
+    return mValue.mFloat;
+  }
+  return 0.0f;
+}
+
+inline float nsStyleCoord::GetAngleValue() const
+{
+  NS_ASSERTION(mUnit >= eStyleUnit_Degree &&
+               mUnit <= eStyleUnit_Turn, "not an angle value");
+  if (mUnit >= eStyleUnit_Degree && mUnit <= eStyleUnit_Turn) {
+    return mValue.mFloat;
+  }
+  return 0.0f;
+}
+
+inline float nsStyleCoord::GetFlexFractionValue() const
+{
+  NS_ASSERTION(mUnit == eStyleUnit_FlexFraction, "not a fr value");
+  if (mUnit == eStyleUnit_FlexFraction) {
+    return mValue.mFloat;
+  }
+  return 0.0f;
+}
+
+inline nsStyleCoord::Calc* nsStyleCoord::GetCalcValue() const
+{
+  NS_ASSERTION(IsCalcUnit(), "not a pointer value");
+  if (IsCalcUnit()) {
+    return AsCalcValue(mValue);
+  }
+  return nullptr;
+}
+
+/* static */ inline void
+nsStyleCoord::Reset(nsStyleUnit& aUnit, nsStyleUnion& aValue)
+{
+  MOZ_ASSERT(aUnit <= eStyleUnit_MAX,
+             "calling Reset on uninitialized nsStyleCoord?");
+
+  switch (aUnit) {
+    case eStyleUnit_Calc:
+      static_cast<Calc*>(aValue.mPointer)->Release();
+      break;
+    default:
+      MOZ_ASSERT(!IsPointerUnit(aUnit), "check pointer refcounting logic");
+  }
+
+  aUnit = eStyleUnit_Null;
+  aValue.mInt = 0;
+}
+
+/* static */ inline void
+nsStyleCoord::SetValue(nsStyleUnit& aUnit,
+                       nsStyleUnion& aValue,
+                       nsStyleUnit aOtherUnit,
+                       const nsStyleUnion& aOtherValue)
+{
+  Reset(aUnit, aValue);
+  InitWithValue(aUnit, aValue, aOtherUnit, aOtherValue);
+}
+
+/* static */ inline void
+nsStyleCoord::InitWithValue(nsStyleUnit& aUnit,
+                            nsStyleUnion& aValue,
+                            nsStyleUnit aOtherUnit,
+                            const nsStyleUnion& aOtherValue)
+{
+  aUnit = aOtherUnit;
+  aValue = aOtherValue;
+
+  switch (aUnit) {
+    case eStyleUnit_Calc:
+      static_cast<Calc*>(aValue.mPointer)->AddRef();
+      break;
+    default:
+      MOZ_ASSERT(!IsPointerUnit(aUnit), "check pointer refcounting logic");
+  }
+}
+
+/* static */ inline void
+nsStyleCoord::SetValue(nsStyleUnit& aUnit, nsStyleUnion& aValue,
+                       const nsStyleCoord& aOther)
+{
+  SetValue(aUnit, aValue, aOther.mUnit, aOther.mValue);
+}
+
+/* static */ inline void
+nsStyleCoord::InitWithValue(nsStyleUnit& aUnit, nsStyleUnion& aValue,
+                            const nsStyleCoord& aOther)
+{
+  InitWithValue(aUnit, aValue, aOther.mUnit, aOther.mValue);
+}
+
+
+// -------------------------
+// nsStyleSides inlines
+//
+inline bool nsStyleSides::operator!=(const nsStyleSides& aOther) const
+{
+  return !((*this) == aOther);
+}
+
+inline nsStyleUnit nsStyleSides::GetUnit(mozilla::css::Side aSide) const
+{
+  return (nsStyleUnit)mUnits[aSide];
+}
+
+inline nsStyleUnit nsStyleSides::GetLeftUnit() const
+{
+  return GetUnit(NS_SIDE_LEFT);
+}
+
+inline nsStyleUnit nsStyleSides::GetTopUnit() const
+{
+  return GetUnit(NS_SIDE_TOP);
+}
+
+inline nsStyleUnit nsStyleSides::GetRightUnit() const
+{
+  return GetUnit(NS_SIDE_RIGHT);
+}
+
+inline nsStyleUnit nsStyleSides::GetBottomUnit() const
+{
+  return GetUnit(NS_SIDE_BOTTOM);
+}
+
+inline nsStyleCoord nsStyleSides::Get(mozilla::css::Side aSide) const
+{
+  return nsStyleCoord(mValues[aSide], nsStyleUnit(mUnits[aSide]));
+}
+
+inline nsStyleCoord nsStyleSides::GetLeft() const
+{
+  return Get(NS_SIDE_LEFT);
+}
+
+inline nsStyleCoord nsStyleSides::GetTop() const
+{
+  return Get(NS_SIDE_TOP);
+}
+
+inline nsStyleCoord nsStyleSides::GetRight() const
+{
+  return Get(NS_SIDE_RIGHT);
+}
+
+inline nsStyleCoord nsStyleSides::GetBottom() const
+{
+  return Get(NS_SIDE_BOTTOM);
+}
+
+inline void nsStyleSides::Set(mozilla::css::Side aSide, const nsStyleCoord& aCoord)
+{
+  nsStyleCoord::SetValue(mUnits[aSide], mValues[aSide], aCoord);
+}
+
+inline void nsStyleSides::SetLeft(const nsStyleCoord& aCoord)
+{
+  Set(NS_SIDE_LEFT, aCoord);
+}
+
+inline void nsStyleSides::SetTop(const nsStyleCoord& aCoord)
+{
+  Set(NS_SIDE_TOP, aCoord);
+}
+
+inline void nsStyleSides::SetRight(const nsStyleCoord& aCoord)
+{
+  Set(NS_SIDE_RIGHT, aCoord);
+}
+
+inline void nsStyleSides::SetBottom(const nsStyleCoord& aCoord)
+{
+  Set(NS_SIDE_BOTTOM, aCoord);
+}
+
+// -------------------------
+// nsStyleCorners inlines
+//
+inline bool nsStyleCorners::operator!=(const nsStyleCorners& aOther) const
+{
+  return !((*this) == aOther);
+}
+
+inline nsStyleUnit nsStyleCorners::GetUnit(uint8_t aCorner) const
+{
+  return (nsStyleUnit)mUnits[aCorner];
+}
+
+inline nsStyleCoord nsStyleCorners::Get(uint8_t aCorner) const
+{
+  return nsStyleCoord(mValues[aCorner], nsStyleUnit(mUnits[aCorner]));
+}
+
+inline void nsStyleCorners::Set(uint8_t aCorner, const nsStyleCoord& aCoord)
+{
+  nsStyleCoord::SetValue(mUnits[aCorner], mValues[aCorner], aCoord);
+}
+
+#endif /* nsStyleCoord_h___ */