Rearrange the XHR interfaces to match the spec order

Source/core/xmlhttprequest/XMLHttpRequest.idl

 /*
  * Copyright (C) 2008, 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 28 matching lines @@
     "stream"
 };
 
 [
     WillBeGarbageCollected,
     ActiveDOMObject,
     Constructor,
     ConstructorCallWith=ScriptState,
     Exposed=(Window,DedicatedWorker,SharedWorker)
 ] interface XMLHttpRequest : XMLHttpRequestEventTarget {
-    // event handler attributes
+    // event handler
     attribute EventHandler onreadystatechange;
 
-    // state
+    // states
     const unsigned short UNSENT = 0;
     const unsigned short OPENED = 1;
     const unsigned short HEADERS_RECEIVED = 2;
     const unsigned short LOADING = 3;
     const unsigned short DONE = 4;
-
-    [RaisesException=Setter] attribute unsigned long timeout;
     readonly attribute unsigned short readyState;
 
+    // request
+    [RaisesException] void open(DOMString method, DOMString url, optional boolean async, [TreatUndefinedAs=NullString] optional DOMString? user, [TreatUndefinedAs=NullString] optional DOMString? password);
+    [RaisesException] void setRequestHeader(DOMString header, DOMString value);
+    [RaisesException=Setter] attribute unsigned long timeout;
     [RaisesException=Setter] attribute boolean withCredentials;
-
-    [RaisesException] void open(DOMString method, DOMString url, optional boolean async, [TreatUndefinedAs=NullString] optional DOMString? user, [TreatUndefinedAs=NullString] optional DOMString? password);
-
-    [RaisesException] void setRequestHeader(DOMString header, DOMString value);
-
+    readonly attribute XMLHttpRequestUpload upload;
     [RaisesException] void send(optional (ArrayBuffer or ArrayBufferView or Blob or Document or DOMString or FormData)? data);
-
     void abort();
 
-    readonly attribute XMLHttpRequestUpload upload;
-
     // response
+    readonly attribute DOMString responseURL;
+    readonly attribute unsigned short status;
+    readonly attribute DOMString statusText;
+    DOMString? getResponseHeader(DOMString header);
     [TreatReturnedNullStringAs=Undefined] DOMString getAllResponseHeaders();
-    DOMString? getResponseHeader(DOMString header);
+    [RaisesException] void overrideMimeType(DOMString override);
+    [RaisesException=Setter] attribute XMLHttpRequestResponseType responseType;
+    [Custom=Getter, RaisesException=Getter] readonly attribute object response;
     [Custom=Getter, RaisesException=Getter] readonly attribute DOMString? responseText;
     [RaisesException=Getter] readonly attribute Document responseXML;
-
-    [RaisesException=Setter] attribute XMLHttpRequestResponseType responseType;
-    [Custom=Getter, RaisesException=Getter] readonly attribute object response;
-    readonly attribute DOMString responseURL;
-
-    readonly attribute unsigned short status;
-    readonly attribute DOMString statusText;
-
-    // Extension
-    [RaisesException] void overrideMimeType(DOMString override);
 };