Collect @viewport before constructing RuleSets.

third_party/WebKit/Source/core/css/RuleSet.h

 /*
  * 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.
  *
@@ skipping 182 matching lines @@
     return &m_universalRules;
   }
   const HeapVector<RuleData>* shadowHostRules() const {
     ASSERT(!m_pendingRules);
     return &m_shadowHostRules;
   }
   const HeapVector<Member<StyleRulePage>>& pageRules() const {
     ASSERT(!m_pendingRules);
     return m_pageRules;
   }
-  const HeapVector<Member<StyleRuleViewport>>& viewportRules() const {
-    ASSERT(!m_pendingRules);
-    return m_viewportRules;
-  }
   const HeapVector<Member<StyleRuleFontFace>>& fontFaceRules() const {
     return m_fontFaceRules;
   }
   const HeapVector<Member<StyleRuleKeyframes>>& keyframesRules() const {
     return m_keyframesRules;
   }
   const HeapVector<MinimalRuleData>& deepCombinatorOrShadowPseudoRules() const {
     return m_deepCombinatorOrShadowPseudoRules;
   }
   const HeapVector<MinimalRuleData>& contentPseudoElementRules() const {
@@ skipping 84 matching lines @@
   CompactRuleMap m_classRules;
   CompactRuleMap m_tagRules;
   CompactRuleMap m_shadowPseudoElementRules;
   HeapVector<RuleData> m_linkPseudoClassRules;
   HeapVector<RuleData> m_cuePseudoRules;
   HeapVector<RuleData> m_focusPseudoClassRules;
   HeapVector<RuleData> m_universalRules;
   HeapVector<RuleData> m_shadowHostRules;
   RuleFeatureSet m_features;
   HeapVector<Member<StyleRulePage>> m_pageRules;
-  HeapVector<Member<StyleRuleViewport>> m_viewportRules;
   HeapVector<Member<StyleRuleFontFace>> m_fontFaceRules;
   HeapVector<Member<StyleRuleKeyframes>> m_keyframesRules;
   HeapVector<MinimalRuleData> m_deepCombinatorOrShadowPseudoRules;
   HeapVector<MinimalRuleData> m_contentPseudoElementRules;
   HeapVector<MinimalRuleData> m_slottedPseudoElementRules;
 
   MediaQueryResultList m_viewportDependentMediaQueryResults;
   MediaQueryResultList m_deviceDependentMediaQueryResults;
 
   unsigned m_ruleCount;
   Member<PendingRuleMaps> m_pendingRules;
 
 #ifndef NDEBUG
   HeapVector<RuleData> m_allRules;
 #endif
 };
 
 }  // namespace blink
 
 #endif  // RuleSet_h