npm_modules: Fork bower_components into Polymer 0.4.0 and 0.5.0 versions

polymer_0.4.0/bower_components/web-animations-js/test/testcases/test-document-timeline.html

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 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
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     http://www.apache.org/licenses/LICENSE-2.0
 
 Unless required by applicable law or agreed to in writing, software
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 // Test that document.timeline.currentTime is non-null in an onload handler
 // when using performance timing. Note that this assumes that web-animations.js
 // is loaded before document load time.
 var loadtest = async_test("document.timeline.currentTime should be non-null in an onload handler");
 addEventListener("load", function() {
   loadtest.step(function() {assert_not_equals(document.timeline.currentTime,  null)});
   loadtest.done();
 });
 
 </script>