getComputedStyle() should return used value for 'line-height'

third_party/WebKit/LayoutTests/fast/css/css2-system-fonts.html

Index: third_party/WebKit/LayoutTests/fast/css/css2-system-fonts.html
diff --git a/third_party/WebKit/LayoutTests/fast/css/css2-system-fonts.html b/third_party/WebKit/LayoutTests/fast/css/css2-system-fonts.html
index 301c677160dabb8e8613abcb646d5ec3847a74ae..7a51122da135c2a35ac17e71e3d588be60e882b2 100644
--- a/third_party/WebKit/LayoutTests/fast/css/css2-system-fonts.html
+++ b/third_party/WebKit/LayoutTests/fast/css/css2-system-fonts.html
@@ -15,7 +15,7 @@ systemFontStyles.forEach(function(systemFont) {
   var item = document.createElement('div');
   container.appendChild(item);
   item.style.font = systemFont;
-  item.textContent = systemFont + ': ' + getComputedStyle(item).font;
+  item.textContent = systemFont + ': ' + getComputedStyle(item).fontFamily;
 });
 if (window.testRunner) {
   testRunner.dumpAsText();