Reland "Add plumbing for font-stretch"

Source/core/css/resolver/StyleBuilderCustom.cpp

Index: Source/core/css/resolver/StyleBuilderCustom.cpp
diff --git a/Source/core/css/resolver/StyleBuilderCustom.cpp b/Source/core/css/resolver/StyleBuilderCustom.cpp
index 660c5c6cbd10c79d3c56536ab4073b3630fec970..d6ba5f569415e1db23e328ea7c3ad1cfb58ce330 100644
--- a/Source/core/css/resolver/StyleBuilderCustom.cpp
+++ b/Source/core/css/resolver/StyleBuilderCustom.cpp
@@ -382,6 +382,57 @@ void StyleBuilderFunctions::applyValueCSSPropertyGridTemplateAreas(StyleResolver
     state.style()->setNamedGridAreaColumnCount(gridTemplateAreasValue->columnCount());
 }
 
+void StyleBuilderFunctions::applyInitialCSSPropertyFontStretch(StyleResolverState& state)
+{
+    state.fontBuilder().setStretch(FontStretchNormal);
+}
+
+void StyleBuilderFunctions::applyInheritCSSPropertyFontStretch(StyleResolverState& state)
+{
+    state.fontBuilder().setStretch(state.parentFontDescription().stretch());
+}
+
+void StyleBuilderFunctions::applyValueCSSPropertyFontStretch(StyleResolverState& state, CSSValue* value)
+{
+    if (!value->isPrimitiveValue())
+        return;
+    CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
+    switch (primitiveValue->getValueID()) {
+    case CSSValueInvalid:
+        ASSERT_NOT_REACHED();
+        break;
+    case CSSValueUltraCondensed:
+        state.fontBuilder().setStretch(FontStretchUltraCondensed);
+        break;
+    case CSSValueExtraCondensed:
+        state.fontBuilder().setStretch(FontStretchExtraCondensed);
+        break;
+    case CSSValueCondensed:
+        state.fontBuilder().setStretch(FontStretchCondensed);
+        break;
+    case CSSValueSemiCondensed:
+        state.fontBuilder().setStretch(FontStretchSemiCondensed);
+        break;
+    case CSSValueNormal:
+        state.fontBuilder().setStretch(FontStretchNormal);
+        break;
+    case CSSValueSemiExpanded:
+        state.fontBuilder().setStretch(FontStretchSemiExpanded);
+        break;
+    case CSSValueExpanded:
+        state.fontBuilder().setStretch(FontStretchExpanded);
+        break;
+    case CSSValueExtraExpanded:
+        state.fontBuilder().setStretch(FontStretchExtraExpanded);
+        break;
+    case CSSValueUltraExpanded:
+        state.fontBuilder().setStretch(FontStretchUltraExpanded);
+        break;
+    default:
+        return;
+    }
+}
+
 void StyleBuilderFunctions::applyValueCSSPropertyLineHeight(StyleResolverState& state, CSSValue* value)
 {
     CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);