Revert 184783 "The link should be activated by enter key on focus.."

Source/core/svg/SVGAElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 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 100 matching lines @@
 {
     if (parentNode() && parentNode()->isSVGElement() && toSVGElement(parentNode())->isTextContent())
         return new RenderSVGInline(this);
 
     return new RenderSVGTransformableContainer(this);
 }
 
 void SVGAElement::defaultEventHandler(Event* event)
 {
     if (isLink()) {
-        Node* target = event->target() ? event->target()->toNode() : 0;
-        bool hasFocus = focused() || (target && target->focused());
-        if (hasFocus && isEnterKeyKeypressEvent(event)) {
+        if (focused() && isEnterKeyKeydownEvent(event)) {
             event->setDefaultHandled();
             dispatchSimulatedClick(event);
             return;
         }
 
         if (isLinkClick(event)) {
             String url = stripLeadingAndTrailingHTMLSpaces(hrefString());
 
             if (url[0] == '#') {
                 Element* targetElement = treeScope().getElementById(AtomicString(url.substring(1)));
@@ skipping 77 matching lines @@
         return SVGElement::canStartSelection();
     return hasEditableStyle();
 }
 
 bool SVGAElement::willRespondToMouseClickEvents()
 {
     return isLink() || SVGGraphicsElement::willRespondToMouseClickEvents();
 }
 
 } // namespace blink