Add plumbing for font-stretch

LayoutTests/fast/css/font-shorthand-from-longhands.html

Index: LayoutTests/fast/css/font-shorthand-from-longhands.html
diff --git a/LayoutTests/fast/css/font-shorthand-from-longhands.html b/LayoutTests/fast/css/font-shorthand-from-longhands.html
index 1df1c2fb5bd03e73462d3923bbad3204ebef6828..c8544fcf49113fdbc7369fce4e4787548980d580 100644
--- a/LayoutTests/fast/css/font-shorthand-from-longhands.html
+++ b/LayoutTests/fast/css/font-shorthand-from-longhands.html
@@ -36,50 +36,50 @@ function checkFontStyleValue() {
 style.fontSize = "20px";
 // We need at least the font-family to build the shorthand.
 shouldBe("style.font", "''");
-shouldBe("computedStyle.font", "'normal normal normal 20px/normal foobar'");
+shouldBe("computedStyle.font", "'normal normal normal normal 20px/normal foobar'");
 shouldBe("computedStyle.fontSize", "'20px'");
 shouldBe("checkFontStyleValue()", "true");
 
 style.fontSize = "20px";
 style.fontFamily = "sans-serif";
 shouldBe("style.font", "'20px sans-serif'");
-shouldBe("computedStyle.font", "'normal normal normal 20px/normal sans-serif'");
+shouldBe("computedStyle.font", "'normal normal normal normal 20px/normal sans-serif'");
 shouldBe("computedStyle.fontFamily", "'sans-serif'");
 shouldBe("checkFontStyleValue()", "true");
 
 style.fontStyle = "italic";
 shouldBe("style.font", "'italic 20px sans-serif'");
-shouldBe("computedStyle.font", "'italic normal normal 20px/normal sans-serif'");
+shouldBe("computedStyle.font", "'italic normal normal normal 20px/normal sans-serif'");
 shouldBe("computedStyle.fontStyle", "'italic'");
 shouldBe("checkFontStyleValue()", "true");
 
 style.fontVariant = "small-caps";
 shouldBe("style.font", "'italic small-caps 20px sans-serif'");
-shouldBe("computedStyle.font", "'italic small-caps normal 20px/normal sans-serif'");
+shouldBe("computedStyle.font", "'italic small-caps normal normal 20px/normal sans-serif'");
 shouldBe("computedStyle.fontVariant", "'small-caps'");
 shouldBe("checkFontStyleValue()", "true");
 
 style.fontWeight = "bold";
 shouldBe("style.font", "'italic small-caps bold 20px sans-serif'");
-shouldBe("computedStyle.font", "'italic small-caps bold 20px/normal sans-serif'");
+shouldBe("computedStyle.font", "'italic small-caps bold normal 20px/normal sans-serif'");
 shouldBe("computedStyle.fontWeight", "'bold'");
 shouldBe("checkFontStyleValue()", "true");
 
 style.lineHeight = "40px";
 shouldBe("style.font", "'italic small-caps bold 20px/40px sans-serif'");
-shouldBe("computedStyle.font", "'italic small-caps bold 20px/40px sans-serif'");
+shouldBe("computedStyle.font", "'italic small-caps bold normal 20px/40px sans-serif'");
 shouldBe("computedStyle.lineHeight", "'40px'");
 shouldBe("checkFontStyleValue()", "true");
 
 style.font = "";
 shouldBe("style.font", "''");
-shouldBe("computedStyle.font", "'normal normal normal 16px/normal foobar'");
+shouldBe("computedStyle.font", "'normal normal normal normal 16px/normal foobar'");
 shouldBe("checkFontStyleValue()", "true");
 
 style.fontWeight = "bold";
 // It is normal to return null as the font-size is mandatory to build the shorthand.
 shouldBe("style.font", "''");
-shouldBe("computedStyle.font", "'normal normal bold 16px/normal foobar'");
+shouldBe("computedStyle.font", "'normal normal bold normal 16px/normal foobar'");
 shouldBe("computedStyle.fontWeight", "'bold'");
 shouldBe("checkFontStyleValue()", "true");
 
@@ -87,7 +87,7 @@ style.fontSize = "40px";
 style.fontFamily = "sans-serif";
 style.fontWeight = "bold";
 shouldBe("style.font", "'bold 40px sans-serif'");
-shouldBe("computedStyle.font", "'normal normal bold 40px/normal sans-serif'");
+shouldBe("computedStyle.font", "'normal normal bold normal 40px/normal sans-serif'");
 shouldBe("computedStyle.fontSize", "'40px'");
 shouldBe("computedStyle.fontFamily", "'sans-serif'");
 shouldBe("checkFontStyleValue()", "true");