Remove MediaValues' dependency on RenderStyle

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 118 matching lines @@
 }
 
 StyleResolver::StyleResolver(Document& document)
     : m_document(document)
     , m_viewportStyleResolver(ViewportStyleResolver::create(&document))
     , m_needCollectFeatures(false)
     , m_styleResourceLoader(document.fetcher())
     , m_styleResolverStatsSequence(0)
     , m_accessCount(0)
 {
-    // Construct document root element default style. This is needed
-    // to evaluate media queries that contain relative constraints, like "screen and (max-width: 10em)"
-    // This is here instead of constructor because when constructor is run,
-    // Document doesn't have documentElement.
-    // NOTE: This assumes that element that gets passed to the styleForElement call
-    // is always from the document that owns the StyleResolver.
     FrameView* view = document.view();
     if (view)
-        m_medium = adoptPtr(new MediaQueryEvaluator(view->mediaType()));
+        m_medium = adoptPtr(new MediaQueryEvaluator(view->mediaType(), &view->frame()));
     else
         m_medium = adoptPtr(new MediaQueryEvaluator("all"));
 
-    Element* root = document.documentElement();
-    if (root)
-        m_rootDefaultStyle = styleForElement(root, 0, DisallowStyleSharing, MatchOnlyUserAgentRules);
-
-    if (m_rootDefaultStyle && view)
-        m_medium = adoptPtr(new MediaQueryEvaluator(view->mediaType(), &view->frame(), m_rootDefaultStyle.get()));
-
     m_styleTree.clear();
 
     initWatchedSelectorRules(CSSSelectorWatch::from(document).watchedCallbackSelectors());
 
 #if ENABLE(SVG_FONTS)
     if (document.svgExtensions()) {
         const HashSet<SVGFontFaceElement*>& svgFontFaceElements = document.svgExtensions()->svgFontFaceElements();
         HashSet<SVGFontFaceElement*>::const_iterator end = svgFontFaceElements.end();
         for (HashSet<SVGFontFaceElement*>::const_iterator it = svgFontFaceElements.begin(); it != end; ++it)
             addFontFaceRule(&document, document.styleEngine()->fontSelector(), (*it)->fontFaceRule());
@@ skipping 1208 matching lines @@
     visitor->trace(m_keyframesRuleMap);
     visitor->trace(m_viewportDependentMediaQueryResults);
     visitor->trace(m_viewportStyleResolver);
     visitor->trace(m_siblingRuleSet);
     visitor->trace(m_uncommonAttributeRuleSet);
     visitor->trace(m_watchedSelectorsRules);
     visitor->trace(m_treeBoundaryCrossingRules);
 }
 
 } // namespace WebCore