Implement elementsFromPoint

Source/core/testing/Internals.cpp

Index: Source/core/testing/Internals.cpp
diff --git a/Source/core/testing/Internals.cpp b/Source/core/testing/Internals.cpp
index 10c51ad5b3da4bc4703b8974fcd4f7bcdc8695c5..57a5e7879b0c9e65abe080ddc2617191a864f119 100644
--- a/Source/core/testing/Internals.cpp
+++ b/Source/core/testing/Internals.cpp
@@ -1361,7 +1361,7 @@ PassRefPtrWillBeRawPtr<StaticNodeList> Internals::nodesFromRect(Document* docume
     float zoomFactor = frame->pageZoomFactor();
     LayoutPoint point = roundedLayoutPoint(FloatPoint(centerX * zoomFactor + frameView->scrollX(), centerY * zoomFactor + frameView->scrollY()));
 
-    HitTestRequest::HitTestRequestType hitType = HitTestRequest::ReadOnly | HitTestRequest::Active;
+    HitTestRequest::HitTestRequestType hitType = HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::ListBased;
     if (ignoreClipping)
         hitType |= HitTestRequest::IgnoreClipping;
     if (allowChildFrameContent)
@@ -1374,23 +1374,9 @@ PassRefPtrWillBeRawPtr<StaticNodeList> Internals::nodesFromRect(Document* docume
         return nullptr;
 
     WillBeHeapVector<RefPtrWillBeMember<Node> > matches;
-
-    // Need padding to trigger a rect based hit test, but we want to return a NodeList
-    // so we special case this.
-    if (!topPadding && !rightPadding && !bottomPadding && !leftPadding) {
-        HitTestResult result(point);
-        renderView->hitTest(request, result);
-
-        if (Node* innerNode = result.innerNode()) {
-            if (innerNode->isInShadowTree())
-                innerNode = innerNode->shadowHost();
-            matches.append(innerNode);
-        }
-    } else {
-        HitTestResult result(point, topPadding, rightPadding, bottomPadding, leftPadding);
-        renderView->hitTest(request, result);
-        copyToVector(result.rectBasedTestResult(), matches);
-    }
+    HitTestResult result(point, topPadding, rightPadding, bottomPadding, leftPadding);
+    renderView->hitTest(request, result);
+    copyToVector(result.listBasedTestResult(), matches);
 
     return StaticNodeList::adopt(matches);
 }