Fix testharness paths in imported/wpt/* except dom and html.

third_party/WebKit/LayoutTests/imported/wpt/shadow-dom/untriaged/events/event-dispatch/test-003.html

Index: third_party/WebKit/LayoutTests/imported/wpt/shadow-dom/untriaged/events/event-dispatch/test-003.html
diff --git a/third_party/WebKit/LayoutTests/imported/wpt/shadow-dom/untriaged/events/event-dispatch/test-003.html b/third_party/WebKit/LayoutTests/imported/wpt/shadow-dom/untriaged/events/event-dispatch/test-003.html
index ea4a5caa6ff64d2a93118809d44f6619d00b80a8..ec14dac762280249b641d71c78311d729dbd54b8 100644
--- a/third_party/WebKit/LayoutTests/imported/wpt/shadow-dom/untriaged/events/event-dispatch/test-003.html
+++ b/third_party/WebKit/LayoutTests/imported/wpt/shadow-dom/untriaged/events/event-dispatch/test-003.html
@@ -14,8 +14,8 @@ policies and contribution forms [3].
 <link rel="author" title="Sergey G. Grekhov" href="mailto:sgrekhov@unipro.ru">
 <link rel="help" href="https://w3c.github.io/webcomponents/spec/shadow/#event-path-trimming">
 <meta name="assert" content="Event Path Trimming: In cases where both relatedTarget and target of a trusted event are part of the same shadow tree, the conforming UAs must stop events at the shadow root to avoid the appearance of spurious mouseover and mouseout events firing from the same node.">
-<script src="../../../../../../resources/testharness.js"></script>
-<script src="../../../../../../resources/testharnessreport.js"></script>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
 <script src="../../../../html/resources/common.js"></script>
 <script src="../../../resources/shadow-dom-utils.js"></script>
 </head>