Mouse press should focus on any types of form controls.

Source/core/html/HTMLFormControlElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 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 101 matching lines @@
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     virtual void requiredAttributeChanged();
     virtual void disabledAttributeChanged();
     virtual void attach();
     virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
     virtual void removedFrom(ContainerNode*) OVERRIDE;
     virtual void didMoveToNewDocument(Document* oldDocument) OVERRIDE;
 
     virtual bool supportsFocus() const;
     virtual bool isKeyboardFocusable(KeyboardEvent*) const;
-    virtual bool isMouseFocusable() const;
+    virtual bool shouldShowFocusRingOnMouseFocus() const;
+    virtual bool shouldHaveFocusAppearance() const OVERRIDE;
+    virtual void dispatchFocusEvent(PassRefPtr<Node> oldFocusedNode, FocusDirection) OVERRIDE;
+    void willHandleKeyDownEvent();
 
     virtual void didRecalcStyle(StyleChange) OVERRIDE;
 
     virtual void dispatchBlurEvent(PassRefPtr<Node> newFocusedNode);
 
     // This must be called any time the result of willValidate() has changed.
     void setNeedsWillValidateCheck();
     virtual bool recalcWillValidate() const;
 
     bool validationMessageShadowTreeContains(Node*) const;
@@ skipping 27 matching lines @@
     // initialize it with a virtual function in the constructor. m_willValidate
     // is not deterministic as long as m_willValidateInitialized is false.
     mutable bool m_willValidateInitialized: 1;
     mutable bool m_willValidate : 1;
 
     // Cache of validity()->valid().
     // But "candidate for constraint validation" doesn't affect m_isValid.
     bool m_isValid : 1;
 
     bool m_wasChangedSinceLastFormControlChangeEvent : 1;
-
+    bool m_wasFocusedByMouse : 1;
     bool m_hasAutofocused : 1;
 };
 
 } // namespace
 
 #endif