Merge RenderWidget into single subclass, RenderPart

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 008fb9055e6258dde22c6474eb0809919eb8d8ec..915af6bdcfaa2c576a8d8468fed399663ba2b42a 100644
--- a/Source/core/dom/Element.cpp
+++ b/Source/core/dom/Element.cpp
@@ -2076,7 +2076,7 @@ void Element::updateFocusAppearance(bool /*restorePreviousSelection*/)
         // and we don't want to change the focus to a new Element.
         frame->selection().setSelection(newSelection,  FrameSelection::CloseTyping | FrameSelection::ClearTypingStyle | FrameSelection::DoNotSetFocus);
         frame->selection().revealSelection();
-    } else if (renderer() && !renderer()->isWidget())
+    } else if (renderer() && !renderer()->isRenderPart())
         renderer()->scrollRectToVisible(boundingBox());
 }