CSS Custom Properties (Variables)

Source/core/style/ComputedStyle.cpp

Index: Source/core/style/ComputedStyle.cpp
diff --git a/Source/core/style/ComputedStyle.cpp b/Source/core/style/ComputedStyle.cpp
index d240465c8e5c34b9c1efbbed9a847d8b5127c66f..78f99424c3c620ce808bc2080a08ca0b07d8a841 100644
--- a/Source/core/style/ComputedStyle.cpp
+++ b/Source/core/style/ComputedStyle.cpp
@@ -1252,6 +1252,37 @@ const Vector<AppliedTextDecoration>& ComputedStyle::appliedTextDecorations() con
     return rareInheritedData->appliedTextDecorations->vector();
 }
 
+StyleVariableData* ComputedStyle::variables() const
+{
+    ASSERT(RuntimeEnabledFeatures::cssVariablesEnabled());
+    return rareInheritedData->variables.get();
+}
+
+void ComputedStyle::setVariables(PassRefPtr<StyleVariableData> variableData)
+{
+    rareInheritedData.access()->variables = variableData;
+}
+
+void ComputedStyle::setVariable(const AtomicString& name, PassRefPtr<CSSVariableData> value)
+{
+    RefPtr<StyleVariableData>& variables = rareInheritedData.access()->variables;
+    if (!variables)
+        variables = StyleVariableData::create();
+    else if (!variables->hasOneRef())
+        variables = variables->copy();
+    variables->setVariable(name, value);
+}
+
+void ComputedStyle::removeVariable(const AtomicString& name)
+{
+    RefPtr<StyleVariableData>& variables = rareInheritedData.access()->variables;
+    if (!variables)
+        return;
+    if (!variables->hasOneRef())
+        variables = variables->copy();
+    variables->removeVariable(name);
+}
+
 float ComputedStyle::wordSpacing() const { return fontDescription().wordSpacing(); }
 float ComputedStyle::letterSpacing() const { return fontDescription().letterSpacing(); }