[Layout API] Use Document::layoutViewItem() in ViewportStyleResolver

third_party/WebKit/Source/core/css/resolver/StyleResolverState.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 48 matching lines @@
     // For performance reasons, explicitly clear HeapVectors and
     // HeapHashMaps to avoid giving a pressure on Oilpan's GC.
     m_animationUpdate.clear();
 }
 
 CSSToLengthConversionData StyleResolverState::fontSizeConversionData() const
 {
     float em = parentStyle()->specifiedFontSize();
     float rem = rootElementStyle() ? rootElementStyle()->specifiedFontSize() : 1;
     CSSToLengthConversionData::FontSizes fontSizes(em, rem, &parentStyle()->font());
-    CSSToLengthConversionData::ViewportSize viewportSize(document().layoutView());
+    CSSToLengthConversionData::ViewportSize viewportSize(document().layoutViewItem());
 
     return CSSToLengthConversionData(style(), fontSizes, viewportSize, 1);
 }
 
 void StyleResolverState::loadPendingResources()
 {
     m_elementStyleResources.loadPendingResources(style());
 }
 
 void StyleResolverState::setCustomPropertySetForApplyAtRule(const String& string, StylePropertySet* customPropertySet)
 {
     m_customPropertySetsForApplyAtRule.set(string, customPropertySet);
 }
 
 StylePropertySet* StyleResolverState::customPropertySetForApplyAtRule(const String& string)
 {
     return m_customPropertySetsForApplyAtRule.get(string);
 }
 
 } // namespace blink