Move MediaQuery classes off BlinkGC heap

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

 /*
  * 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, 2011, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
@@ skipping 1092 matching lines @@
       m_mediaQueryEvaluator = new MediaQueryEvaluator("all");
   }
   return *m_mediaQueryEvaluator;
 }
 
 bool StyleEngine::mediaQueryAffectedByViewportChange() {
   const MediaQueryEvaluator& evaluator = ensureMediaQueryEvaluator();
   const auto& results =
       m_globalRuleSet.ruleFeatureSet().viewportDependentMediaQueryResults();
   for (unsigned i = 0; i < results.size(); ++i) {
-    if (evaluator.eval(results[i]->expression()) != results[i]->result())
+    if (evaluator.eval(results[i].expression()) != results[i].result())
       return true;
   }
   return false;
 }
 
 bool StyleEngine::mediaQueryAffectedByDeviceChange() {
   const MediaQueryEvaluator& evaluator = ensureMediaQueryEvaluator();
   const auto& results =
       m_globalRuleSet.ruleFeatureSet().deviceDependentMediaQueryResults();
   for (unsigned i = 0; i < results.size(); ++i) {
-    if (evaluator.eval(results[i]->expression()) != results[i]->result())
+    if (evaluator.eval(results[i].expression()) != results[i].result())
       return true;
   }
   return false;
 }
 
 DEFINE_TRACE(StyleEngine) {
   visitor->trace(m_document);
   visitor->trace(m_injectedAuthorStyleSheets);
   visitor->trace(m_inspectorStyleSheet);
   visitor->trace(m_documentStyleSheetCollection);
@@ skipping 14 matching lines @@
 }
 
 DEFINE_TRACE_WRAPPERS(StyleEngine) {
   for (auto sheet : m_injectedAuthorStyleSheets) {
     visitor->traceWrappers(sheet);
   }
   visitor->traceWrappers(m_documentStyleSheetCollection);
 }
 
 }  // namespace blink