| Index: third_party/WebKit/LayoutTests/fast/dom/custom/create-element-second-arg.html
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| diff --git a/third_party/WebKit/LayoutTests/fast/dom/custom/create-element-second-arg.html b/third_party/WebKit/LayoutTests/fast/dom/custom/create-element-second-arg.html
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| new file mode 100644
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| index 0000000000000000000000000000000000000000..09de9900395dcda77e0080c676eb51779a012129
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| --- /dev/null
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| +++ b/third_party/WebKit/LayoutTests/fast/dom/custom/create-element-second-arg.html
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| @@ -0,0 +1,16 @@
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| +<!doctype html>
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| +<script src="../../../resources/testharness.js"></script>
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| +<script src="../../../resources/testharnessreport.js"></script>
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| +<script>
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| +test(() => {
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| +    var XButton = document.registerElement('x-button', {extends: 'button'});
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| +    var elem = document.createElement('button', 'x-button');
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| +    assert_equals(elem.constructor, XButton);
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| +
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| +    elem = document.createElement('button', {is: 'x-button'});
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| +    assert_equals(elem.constructor, XButton);
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| +
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| +    elem = document.createElement('button', {toString: () => 'x-button'});
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| +    assert_equals(elem.constructor, XButton);
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| +}, "Test for Issue 637353: 2nd arg of document.createElement should be an object");
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| +</script>
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| 
 |