Stop passing dummy ParentDetails to NodeRenderingTraversal::parent()

Source/core/css/resolver/StyleResolver.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 936 matching lines @@
     state.setLineHeightValue(0);
     state.fontBuilder().setInitial(state.style()->effectiveZoom());
     state.style()->font().update(document().styleEngine()->fontSelector());
     return state.takeStyle();
 }
 
 PassRefPtr<RenderStyle> StyleResolver::styleForText(Text* textNode)
 {
     ASSERT(textNode);
 
-    NodeRenderingTraversal::ParentDetails parentDetails;
-    Node* parentNode = NodeRenderingTraversal::parent(textNode, &parentDetails);
+    Node* parentNode = NodeRenderingTraversal::parent(textNode);
     if (!parentNode || !parentNode->renderStyle())
         return defaultStyleForElement();
     return parentNode->renderStyle();
 }
 
 void StyleResolver::updateFont(StyleResolverState& state)
 {
     state.fontBuilder().createFont(document().styleEngine()->fontSelector(), state.parentStyle(), state.style());
     if (state.fontBuilder().fontSizeHasViewportUnits())
         state.style()->setHasViewportUnits();
@@ skipping 596 matching lines @@
     visitor->trace(m_features);
     visitor->trace(m_siblingRuleSet);
     visitor->trace(m_uncommonAttributeRuleSet);
     visitor->trace(m_watchedSelectorsRules);
     visitor->trace(m_treeBoundaryCrossingRules);
     visitor->trace(m_pendingStyleSheets);
 #endif
 }
 
 } // namespace blink