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 37b4c59d9c461334cbe025447453b948fe0d738f..77c83708ee5027f0dbbdeb2c9772b72ebf84e22b 100644
--- a/Source/core/css/resolver/StyleBuilderCustom.cpp
+++ b/Source/core/css/resolver/StyleBuilderCustom.cpp
@@ -295,6 +295,58 @@ void StyleBuilderFunctions::applyValueCSSPropertyFontWeight(StyleResolverState&
     }
 }
 
+
+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)
 {
     if (!value->isPrimitiveValue())
@@ -1510,7 +1562,6 @@ void StyleBuilder::oldApplyProperty(CSSPropertyID id, StyleResolverState& state,
         ASSERT(newId != id);
         return applyProperty(newId, state, value);
     }
-    case CSSPropertyFontStretch:
     case CSSPropertyPage:
     case CSSPropertyTextLineThroughColor:
     case CSSPropertyTextLineThroughMode:
@@ -1804,6 +1855,7 @@ void StyleBuilder::oldApplyProperty(CSSPropertyID id, StyleResolverState& state,
     case CSSPropertyFloat:
     case CSSPropertyFontKerning:
     case CSSPropertyFontSize:
+    case CSSPropertyFontStretch:
     case CSSPropertyFontStyle:
     case CSSPropertyFontVariant:
     case CSSPropertyFontVariantLigatures: