Implement elementsFromPoint

Source/core/rendering/RenderBlock.cpp

Index: Source/core/rendering/RenderBlock.cpp
diff --git a/Source/core/rendering/RenderBlock.cpp b/Source/core/rendering/RenderBlock.cpp
index cef0c517f6daa44f7db1c7f8a2e2b92dd65fbb52..961bb34b33a45932446f0696b4cca9beda950fe2 100644
--- a/Source/core/rendering/RenderBlock.cpp
+++ b/Source/core/rendering/RenderBlock.cpp
@@ -2184,7 +2184,7 @@ bool RenderBlock::nodeAtPoint(const HitTestRequest& request, HitTestResult& resu
         && isPointInOverflowControl(result, locationInContainer.point(), adjustedLocation)) {
         updateHitTestResult(result, locationInContainer.point() - localOffset);
         // FIXME: isPointInOverflowControl() doesn't handle rect-based tests yet.
-        if (!result.addNodeToRectBasedTestResult(nodeForHitTest(), request, locationInContainer))
+        if (!result.addNodeToListBasedTestResult(nodeForHitTest(), request, locationInContainer))
            return true;
     }
 
@@ -2252,7 +2252,7 @@ bool RenderBlock::nodeAtPoint(const HitTestRequest& request, HitTestResult& resu
         LayoutRect boundsRect(adjustedLocation, size());
         if (visibleToHitTestRequest(request) && locationInContainer.intersects(boundsRect)) {
             updateHitTestResult(result, flipForWritingMode(locationInContainer.point() - localOffset));
-            if (!result.addNodeToRectBasedTestResult(nodeForHitTest(), request, locationInContainer, boundsRect))
+            if (!result.addNodeToListBasedTestResult(nodeForHitTest(), request, locationInContainer, boundsRect))
                 return true;
         }
     }