focus() behaviour differs depending on how value is set

Source/core/html/HTMLInputElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
@@ skipping 319 matching lines @@
 }
 
 bool HTMLInputElement::shouldShowFocusRingOnMouseFocus() const
 {
     return m_inputType->shouldShowFocusRingOnMouseFocus();
 }
 
 void HTMLInputElement::updateFocusAppearance(bool restorePreviousSelection)
 {
     if (isTextField()) {
-        if (!restorePreviousSelection || !hasCachedSelection())
+        if (!restorePreviousSelection)
             select();
         else
             restoreCachedSelection();
         if (document().frame())
             document().frame()->selection().revealSelection();
     } else
         HTMLTextFormControlElement::updateFocusAppearance(restorePreviousSelection);
 }
 
 void HTMLInputElement::beginEditing()
@@ skipping 1525 matching lines @@
 }
 
 #if ENABLE(INPUT_MULTIPLE_FIELDS_UI)
 PassRefPtr<RenderStyle> HTMLInputElement::customStyleForRenderer()
 {
     return m_inputTypeView->customStyleForRenderer(originalStyleForRenderer());
 }
 #endif
 
 } // namespace