[Not for review] Implement a <blink> tag in Blink-in-JS

Source/core/html/HTMLBlinkElement.js

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+'use strict';
+
+installClass('HTMLBlinkElement', function(global, HTMLBlinkElementPrototype) {
+    HTMLBlinkElementPrototype.attachedCallback = function() {
+        this.displayed_ = 1;
+        this.timer_ = setInterval(function() {
+            this.setAttribute("style", this.displayed_ ? "display:inline" : "display:none");

[abarth-chromium, 2014/08/01 21:42:45]

I think you're supposed to twiddle between visibility:visible and
visibility:hidden.  :)

[haraken, 2014/08/01 21:48:03]

Done.

+            this.displayed_ ^= 1;
+        }.bind(this), 500);
+    };
+
+    HTMLBlinkElementPrototype.detachedCallback = function() {
+        clearInterval(this.timer_);
+    };
+});