Use master StyleEngine to evaluate MQ in html imports.

third_party/WebKit/Source/core/dom/StyleEngine.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 102 matching lines @@
   void htmlImportAddedOrRemoved();
 
   void injectAuthorSheet(StyleSheetContents* authorSheet);
   CSSStyleSheet& ensureInspectorStyleSheet();
   RuleSet* watchedSelectorsRuleSet() {
     return m_globalRuleSet.watchedSelectorsRuleSet();
   }
 
   RuleSet* ruleSetForSheet(CSSStyleSheet&);
   void mediaQueryAffectingValueChanged();
-  void updateStyleSheetsInImport(DocumentStyleSheetCollector& parentCollector);
+  void updateStyleSheetsInImport(StyleEngine& masterEngine,
+                                 DocumentStyleSheetCollector& parentCollector);
   void updateActiveStyle();
   void markAllTreeScopesDirty() { m_allTreeScopesDirty = true; }
 
   String preferredStylesheetSetName() const {
     return m_preferredStylesheetSetName;
   }
   String selectedStylesheetSetName() const {
     return m_selectedStylesheetSetName;
   }
   void setPreferredStylesheetSetNameIfNotSet(const String&);
@@ skipping 239 matching lines @@
 
   std::unique_ptr<StyleResolverStats> m_styleResolverStats;
   unsigned m_styleForElementCount = 0;
 
   friend class StyleEngineTest;
 };
 
 }  // namespace blink
 
 #endif