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diff --git a/contexts/data/lib/closure-library/closure/goog/json/json_perf.html b/contexts/data/lib/closure-library/closure/goog/json/json_perf.html
deleted file mode 100644
index 0c79b45..0000000
--- a/contexts/data/lib/closure-library/closure/goog/json/json_perf.html
+++ /dev/null
@@ -1,116 +0,0 @@
-<!DOCTYPE html>
-<html>
-<!--
-Copyright 2012 The Closure Library Authors. All Rights Reserved.
-
-Use of this source code is governed by the Apache License, Version 2.0.
-See the COPYING file for details.
--->
-<!--
--->
-<head>
-<meta http-equiv="X-UA-Compatible" content="IE=edge">
- <title>Closure Performance Tests - goog.json vs JSON</title>
- <link rel="stylesheet" type="text/css" href="../testing/performancetable.css"/>
- <script src="../base.js"></script>
- <script>
- goog.require('goog.json');
- goog.require('goog.string');
- goog.require('goog.testing.PerformanceTable');
- goog.require('goog.testing.PropertyReplacer');
- goog.require('goog.testing.jsunit');
- </script>
-</head>
-<body>
-<h1>goog.json and JSON Performance Tests</h1>
-<p>
-<strong>User-agent:</strong>
-<script>document.write(navigator.userAgent);</script>
-</p>
-<div id="perfTable"></div>
-<hr>
-
-<script>
-var table = new goog.testing.PerformanceTable(
- goog.dom.getElement('perfTable'));
-
-var stubs = new goog.testing.PropertyReplacer();
-
-function tearDown() {
- stubs.reset();
-}
-
-function testSerialize() {
- var obj = populateObject({}, 50, 4);
-
- table.run(function() {
- var s = JSON.stringify(obj);
- }, 'Stringify using JSON.stringify');
-
- table.run(function() {
- var s = goog.json.serialize(obj);
- }, 'Stringify using goog.json.serialize');
-}
-
-function testParse() {
- var obj = populateObject({}, 50, 4);
- var s = JSON.stringify(obj);
-
- table.run(function() {
- var o = JSON.parse(s);
- }, 'Parse using JSON.parse');
-
- table.run(function() {
- var o = goog.json.parse(s);
- }, 'Parse using goog.json.parse');
-
- table.run(function() {
- var o = goog.json.unsafeParse(s);
- }, 'Parse using goog.json.unsafeParse');
-}
-
-/**
- * @param obj The object to add properties to.
- * @param numProperties The number of properties to add.
- * @param depth The depth at which to recursively add properties.
- */
-function populateObject(obj, numProperties, depth) {
- if (depth == 0) {
- return randomLiteral();
- }
-
- // Make an object with a mix of strings, numbers, arrays, objects, booleans
- // nulls as children.
- for (var i = 0; i < numProperties; i++) {
- var bucket = goog.math.randomInt(3);
- switch (bucket) {
- case 0:
- obj[i] = randomLiteral();
- break;
- case 1:
- obj[i] = populateObject({}, numProperties, depth - 1);
- break;
- case 2:
- obj[i] = populateObject([], numProperties, depth - 1);
- break;
- }
- }
- return obj;
-}
-
-function randomLiteral() {
- var bucket = goog.math.randomInt(3);
- switch (bucket) {
- case 0:
- return goog.string.getRandomString();
- case 1:
- return Math.random();
- case 2:
- return Math.random() >= .5;
- }
- return null;
-}
-
-</script>
-</body>
-</html>