Import latest web-platform-tests

third_party/WebKit/LayoutTests/imported/web-platform-tests/shadow-dom/untriaged/shadow-trees/shadow-root-001.html

Index: third_party/WebKit/LayoutTests/imported/web-platform-tests/shadow-dom/untriaged/shadow-trees/shadow-root-001.html
diff --git a/third_party/WebKit/LayoutTests/imported/web-platform-tests/shadow-dom/untriaged/shadow-trees/shadow-root-001.html b/third_party/WebKit/LayoutTests/imported/web-platform-tests/shadow-dom/untriaged/shadow-trees/shadow-root-001.html
index 90432ae05e866b697810a50269c3b6e47ccbf67c..b93392bce35703b232c93963ac6ea51bb3ff207c 100644
--- a/third_party/WebKit/LayoutTests/imported/web-platform-tests/shadow-dom/untriaged/shadow-trees/shadow-root-001.html
+++ b/third_party/WebKit/LayoutTests/imported/web-platform-tests/shadow-dom/untriaged/shadow-trees/shadow-root-001.html
@@ -16,7 +16,7 @@ policies and contribution forms [3].
 <link rel="author" title="Yuta Kitamura" href="mailto:yutak@google.com">
 <link rel="help" href="http://www.w3.org/TR/2013/WD-shadow-dom-20130514/#shadow-trees">
 <meta name="assert" content="When a shadow root is attached, the shadow tree is rendered.">
-<script src="../testcommon.js"></script>
+<script src="../../../html/resources/common.js"></script>
 <style>
 p { color: black; }
 * { color: red; }
@@ -26,7 +26,7 @@ p { color: black; }
 <p>You should see green text saying "PASS" below.</p>
 <div id="host">FAIL</div>
 <script>
-var shadowRoot = window.host.createShadowRoot();
+var shadowRoot = window.host.attachShadow({mode: 'open'});
 shadowRoot.innerHTML =
     '<style>#pass { color: green; }</style>\n' +
     '<div id="pass">PASS</div>';