Implement elementsFromPoint

Source/core/dom/Document.cpp

Index: Source/core/dom/Document.cpp
diff --git a/Source/core/dom/Document.cpp b/Source/core/dom/Document.cpp
index c03d58941f1ad1279c7ad74b8881fd7ea3139834..bcc496cc7cf158ea2abc1e367e6375413eb2e030 100644
--- a/Source/core/dom/Document.cpp
+++ b/Source/core/dom/Document.cpp
@@ -1248,11 +1248,20 @@ Element* Document::elementFromPoint(int x, int y) const
     return TreeScope::elementFromPoint(x, y);
 }
 
+Vector<Element*> Document::elementsFromPoint(int x, int y) const
+{
+    if (!renderView())
+        return Vector<Element*>();
+
+    return TreeScope::elementsFromPoint(x, y);
+}
+
 PassRefPtrWillBeRawPtr<Range> Document::caretRangeFromPoint(int x, int y)
 {
     if (!renderView())
         return nullptr;
-    HitTestResult result = hitTestInDocument(this, x, y);
+    HitTestRequest request(HitTestRequest::ReadOnly | HitTestRequest::Active);
+    HitTestResult result = hitTestInDocument(this, x, y, request);
     RenderObject* renderer = result.renderer();
     if (!renderer)
         return nullptr;