[Font Load Events] Implement FontFaceSet methods

LayoutTests/fast/css/fontloader-multiple-faces.html

Index: LayoutTests/fast/css/fontloader-multiple-faces.html
diff --git a/LayoutTests/fast/css/fontloader-multiple-faces.html b/LayoutTests/fast/css/fontloader-multiple-faces.html
index dbb02486180d1787c6c1f066b687bd2ff47bea8b..c1366be2473abd5d2556b68daf1348c9339a89ed 100644
--- a/LayoutTests/fast/css/fontloader-multiple-faces.html
+++ b/LayoutTests/fast/css/fontloader-multiple-faces.html
@@ -21,9 +21,9 @@ window.jsTestIsAsync = true;
 function runTests() {
     document.fonts.addEventListener('loading', onLoading);
     document.fonts.addEventListener('loadingdone', onLoadingDone);
-    document.fonts.notifyWhenFontsReady(finish);
+    document.fonts.ready().then(finish);
 
-    document.fonts.loadFont({font: '10px TestFont'});
+    document.fonts.load('10px TestFont');
 }
 
 var event;
@@ -39,7 +39,7 @@ function onLoadingDone(e) {
     shouldBe("event.fontfaces.length", "2");
     shouldBeEqualToString("event.fontfaces[0].status", "loaded");
     shouldBeEqualToString("event.fontfaces[1].status", "loaded");
-    shouldBeTrue("document.fonts.checkFont('10px TestFont')");
+    shouldBeTrue("document.fonts.check('10px TestFont')");
 }
 
 function onLoadingError(e) {