Encoding API: Add TextDecodeOptions and TextDecoderOptions

Source/modules/encoding/TextDecoder.idl

Index: Source/modules/encoding/TextDecoder.idl
diff --git a/Source/modules/encoding/TextDecoder.idl b/Source/modules/encoding/TextDecoder.idl
index af0ffacaf3441c79d9593746b9ae58e811a415b1..977a8653bc1feb5ddd018263e56d5f1557cf51df 100644
--- a/Source/modules/encoding/TextDecoder.idl
+++ b/Source/modules/encoding/TextDecoder.idl
@@ -31,7 +31,7 @@
 [
     RuntimeEnabled=EncodingAPI,
     Exposed=(Window,Worker),
-    Constructor(optional DOMString label = "utf-8", optional Dictionary options),
+    Constructor(optional DOMString label = "utf-8", optional TextDecoderOptions options),
     RaisesException=Constructor,
     GarbageCollected,
     MeasureAs=TextDecoderConstructor
@@ -39,5 +39,5 @@
     readonly attribute DOMString encoding;
     readonly attribute boolean fatal;
     readonly attribute boolean ignoreBOM;
-    [RaisesException, MeasureAs=TextDecoderDecode] DOMString decode(optional ArrayBufferView input, optional Dictionary options);
+    [RaisesException, MeasureAs=TextDecoderDecode] DOMString decode(optional ArrayBufferView input, optional TextDecodeOptions options);
 };