Mouse press should focus on any types of form controls.

Source/core/html/InputType.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) 2009, 2010, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
  *
@@ skipping 513 matching lines @@
 bool InputType::hasCustomFocusLogic() const
 {
     return true;
 }
 
 bool InputType::isKeyboardFocusable(KeyboardEvent* event) const
 {
     return element()->isTextFormControlKeyboardFocusable(event);
 }
 
-bool InputType::isMouseFocusable() const
+bool InputType::shouldShowFocusRingOnMouseFocus() const
 {
-    return element()->isTextFormControlMouseFocusable();
+    return false;
 }
 
 bool InputType::shouldUseInputMethod() const
 {
     return false;
 }
 
 void InputType::handleFocusEvent(Node*, FocusDirection)
 {
 }
@@ skipping 557 matching lines @@
 
 void InputType::observeFeatureIfVisible(UseCounter::Feature feature) const
 {
     if (RenderStyle* style = element()->renderStyle()) {
         if (style->visibility() != HIDDEN)
             UseCounter::count(element()->document(), feature);
     }
 }
 
 } // namespace WebCore