CSS Font Loading: make FontFaceSet Setlike

third_party/WebKit/Source/core/css/FontFaceSet.idl

Index: third_party/WebKit/Source/core/css/FontFaceSet.idl
diff --git a/third_party/WebKit/Source/core/css/FontFaceSet.idl b/third_party/WebKit/Source/core/css/FontFaceSet.idl
index 50525e52f7b144de4d347bc4a3ab92f7f084668c..9e5fc9ccd048afb08ac246256b9d410eb16a9b05 100644
--- a/third_party/WebKit/Source/core/css/FontFaceSet.idl
+++ b/third_party/WebKit/Source/core/css/FontFaceSet.idl
@@ -39,10 +39,8 @@ enum FontFaceSetLoadStatus { "loading", "loaded" };
     SetWrapperReferenceFrom=document,
     NoInterfaceObject,
 ] interface FontFaceSet : EventTarget {
-    // TODO(ksakamoto): Make FontFaceSet Set-like. crbug.com/392075
-    // setlike<FontFace>;
-    void forEach(FontFaceSetForEachCallback callback, optional any thisArg);
-    [RaisesException] boolean has(FontFace fontFace);
+    // TODO(toyoshim): Drop 'readonly' to use setlike's add, delete, and clear.
+    readonly setlike<FontFace>;
     readonly attribute unsigned long size;
     // TODO(philipj): add() should return the FontFaceSet.
     [RaisesException] void add(FontFace fontFace);