Do not implement EventTarget on SVGElementInstance

LayoutTests/svg/custom/use-elementInstance-methods.svg

Index: LayoutTests/svg/custom/use-elementInstance-methods.svg
diff --git a/LayoutTests/svg/custom/use-elementInstance-methods.svg b/LayoutTests/svg/custom/use-elementInstance-methods.svg
deleted file mode 100644
index 65f7fc63b0ff53019c019c708a2a33ba775ab14b..0000000000000000000000000000000000000000
--- a/LayoutTests/svg/custom/use-elementInstance-methods.svg
+++ /dev/null
@@ -1,71 +0,0 @@
-<svg version="1.1" baseProfile="basic" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" onload="runRepaintAndPixelTest()">
-  <script xlink:href="../../fast/repaint/resources/text-based-repaint.js"/>
-  <defs>
-     <g id="reference">
-         <rect x="240" y="1" width="239" height="358" />
-         <circle cx="240" cy="1" width="39" height="58" />
-     </g>
-
-    <script type="text/ecmascript">
-    <![CDATA[
-      window.outputRepaintRects = false;
-      function repaintTest() {
-          if (window.eventSender) {
-              testRunner.waitUntilDone();
-              eventSender.mouseMoveTo(250, 50);
-              eventSender.mouseDown();
-              eventSender.mouseUp();
-          }
-      }
-
-      function test (event) {
-        // get pointers to use and referenced elements
-        var container = document.getElementById('reference');
-        var rect = container.firstChild.nextSibling;
-        var circle = rect.nextSibling.nextSibling;
-        var use = document.getElementById('use');
-
-        // test all SVGElementInstance methods (except childNodes) 
-        var rectInstance = event.target;
-        var gInstance = rectInstance.parentNode;
-        var circleInstance = rectInstance.nextSibling;
-    
-        // Check wheter correspdoningElement is the <rect>, and wheter <use> is set correctly.
-        if (rectInstance.correspondingElement != rect) return;
-        if (rectInstance.correspondingUseElement != use) return;
-
-        // Our <rect> doesn't have children.
-        if (rectInstance.firstChild) return;
-        if (rectInstance.lastChild) return;
-
-        // Our <rect> SVGElementInstance has the <g> SVGElementInstance as parent node
-        if (!gInstance) return;
-        if (gInstance.correspondingElement != container) return;
-
-        // Our <rect> SVGElementInstance has no previous sibling
-        if (rectInstance.previousSibling) return;
-
-        // Our <rect> SVGElementInstance has the <circle> SVGElementInstance as next sibling
-        if (!circleInstance) return;
-        if (circleInstance.correspondingElement != circle) return;
-        if (rectInstance.nextSibling != circleInstance) return;
-
-        // Our <g> SVGElementInstance has no parent node, and <rect> as firstChild, <circle> as lastChild
-        if (gInstance.parentNode) return;
-        if (gInstance.firstChild != rectInstance) return;
-        if (gInstance.lastChild != circleInstance) return;
-
-        // Hopefully we pass :-)
-        document.getElementById("status").firstChild.nodeValue = "Test passed.";
-
-        if (window.testRunner)
-            testRunner.notifyDone();
-      }
-    ]]>
-    </script>
-  </defs>
-
-  <text x="100" y="50" id="status">Test failed.</text>
-  <use id="use" xlink:href="#reference" onclick="test(evt)" fill="grey" />
-  <rect id="test-frame" x="1" y="1" width="478" height="358" fill="none" stroke="#000"/>
-</svg>