Calling focus() on an iframe should not trigger a 'focusout' event

Source/core/dom/Element.cpp

Index: Source/core/dom/Element.cpp
diff --git a/Source/core/dom/Element.cpp b/Source/core/dom/Element.cpp
index d0ecdf815c4a6f5086d6ea5c7f8d38e187946b7a..d804c5bc0be2ad86891b0f5531081a52e6743304 100644
--- a/Source/core/dom/Element.cpp
+++ b/Source/core/dom/Element.cpp
@@ -2113,7 +2113,9 @@ void Element::updateFocusAppearance(bool /*restorePreviousSelection*/)
 
         // FIXME: We should restore the previous selection if there is one.
         VisibleSelection newSelection = VisibleSelection(firstPositionInOrBeforeNode(this), DOWNSTREAM);
-        frame->selection().setSelection(newSelection);
+        // Passing DoNotSetFocus as this function is called after FocusController::setFocusedElement()
+        // and we don't want to change the focus to a new Element.
+        frame->selection().setSelection(newSelection, FrameSelection::DoNotSetFocus);
         frame->selection().revealSelection();
     } else if (renderer() && !renderer()->isWidget())
         renderer()->scrollRectToVisible(boundingBox());