Add CSS support for font-variation-settings

third_party/WebKit/Source/core/css/ComputedStyleCSSValueMapping.cpp

Index: third_party/WebKit/Source/core/css/ComputedStyleCSSValueMapping.cpp
diff --git a/third_party/WebKit/Source/core/css/ComputedStyleCSSValueMapping.cpp b/third_party/WebKit/Source/core/css/ComputedStyleCSSValueMapping.cpp
index 3ce7aed12b5ea4b503c6ba7cbac7eca337d4d8cf..acfd912694e90756d1dde3846be5c4622f80fb32 100644
--- a/third_party/WebKit/Source/core/css/ComputedStyleCSSValueMapping.cpp
+++ b/third_party/WebKit/Source/core/css/ComputedStyleCSSValueMapping.cpp
@@ -39,6 +39,7 @@
 #include "core/css/CSSCustomPropertyDeclaration.h"
 #include "core/css/CSSFontFamilyValue.h"
 #include "core/css/CSSFontFeatureValue.h"
+#include "core/css/CSSFontVariationValue.h"
 #include "core/css/CSSFunctionValue.h"
 #include "core/css/CSSGridLineNamesValue.h"
 #include "core/css/CSSGridTemplateAreasValue.h"
@@ -2363,6 +2364,21 @@ const CSSValue* ComputedStyleCSSValueMapping::get(
       }
       return list;
     }
+    case CSSPropertyFontVariationSettings: {
+      DCHECK(RuntimeEnabledFeatures::cssVariableFontsEnabled());
+      const FontVariationSettings* variationSettings =
+          style.getFontDescription().variationSettings();
+      if (!variationSettings || !variationSettings->size())
+        return CSSIdentifierValue::create(CSSValueNormal);
+      CSSValueList* list = CSSValueList::createCommaSeparated();
+      for (unsigned i = 0; i < variationSettings->size(); ++i) {
+        const FontVariationAxis& variationAxis = variationSettings->at(i);
+        CSSFontVariationValue* variationValue = CSSFontVariationValue::create(
+            variationAxis.tag(), variationAxis.value());
+        list->append(*variationValue);
+      }
+      return list;
+    }
     case CSSPropertyGridAutoFlow: {
       CSSValueList* list = CSSValueList::createSpaceSeparated();
       switch (style.getGridAutoFlow()) {