Mouse press should focus on any types of form controls.

Source/core/rendering/RenderInline.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 1373 matching lines @@
     }
 }
 
 void RenderInline::paintOutline(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     if (!hasOutline())
         return;
     
     RenderStyle* styleToUse = style();
     if (styleToUse->outlineStyleIsAuto() || hasOutlineAnnotation()) {
-        if (!theme()->supportsFocusRing(styleToUse)) {
+        if (theme()->shouldDrawDefaultFocusRing(this)) {
             // Only paint the focus ring by hand if the theme isn't able to draw the focus ring.
             paintFocusRing(paintInfo, paintOffset, styleToUse);
         }
     }
 
     GraphicsContext* graphicsContext = paintInfo.context;
     if (graphicsContext->paintingDisabled())
         return;
 
     if (styleToUse->outlineStyleIsAuto() || styleToUse->outlineStyle() == BNONE)
@@ skipping 159 matching lines @@
 
 void RenderInline::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, PlatformMemoryTypes::Rendering);
     RenderBoxModelObject::reportMemoryUsage(memoryObjectInfo);
     info.addMember(m_children, "children");
     info.addMember(m_lineBoxes, "lineBoxes");
 }
 
 } // namespace WebCore