Fix persistent focus rings on anchor elements on the 223 branch....

third_party/WebKit/WebCore/html/HTMLAnchorElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  * Copyright (C) 2003, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * 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
@@ skipping 51 matching lines @@
 {
     if (isContentEditable())
         return HTMLElement::supportsFocus();
     // If not a link we should still be able to focus the element if it has tabIndex.
     return isLink() || HTMLElement::supportsFocus();
 }
 
 bool HTMLAnchorElement::isMouseFocusable() const
 {
     // Anchor elements should be mouse focusable, https://bugs.webkit.org/show_bug.cgi?id=26856
-#if PLATFORM(MAC)
+#if !PLATFORM(GTK) && !PLATFORM(QT)
     if (isLink())
-        return false;
+        // Only allow links with tabIndex or contentEditable to be mouse focusable.
+        return HTMLElement::supportsFocus();
 #endif
+
     // Allow tab index etc to control focus.
     return HTMLElement::isMouseFocusable();
 }
 
 bool HTMLAnchorElement::isKeyboardFocusable(KeyboardEvent* event) const
 {
     if (!isLink())
         return HTMLElement::isKeyboardFocusable(event);
 
     if (!isFocusable())
@@ skipping 344 matching lines @@
         // this link or if the shift key is down
         case EditableLinkLiveWhenNotFocused:
             return m_wasShiftKeyDownOnMouseDown || m_rootEditableElementForSelectionOnMouseDown != rootEditableElement();
             
         case EditableLinkOnlyLiveWithShiftKey:
             return m_wasShiftKeyDownOnMouseDown;
     }
 }
 
 }