Roll 50: Copied IDLs, PYTHON scripts from WebKit removed deleted files in WebCore

core/css/FontFaceSet.idl

Index: core/css/FontFaceSet.idl
diff --git a/core/css/FontFaceSet.idl b/core/css/FontFaceSet.idl
index 50525e52f7b144de4d347bc4a3ab92f7f084668c..9f7480e75a05f1171a49ab6f21bfeae33d220468 100644
--- a/core/css/FontFaceSet.idl
+++ b/core/css/FontFaceSet.idl
@@ -35,19 +35,12 @@ enum FontFaceSetLoadStatus { "loading", "loaded" };
 // TODO(philipj): This interface should be [Exposed=Window,Worker] and should
 // have a constructor, and thus not have [NoInterfaceObject].
 [
-    ActiveDOMObject,
+    DependentLifetime,
     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);
+    setlike<FontFace>;
     readonly attribute unsigned long size;
-    // TODO(philipj): add() should return the FontFaceSet.
-    [RaisesException] void add(FontFace fontFace);
-    [RaisesException, ImplementedAs=remove] boolean delete(FontFace fontFace);
-    void clear();
 
     // events for when loading state changes
     attribute EventHandler onloading;