Move MediaQuery classes off BlinkGC heap

third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2009 Torch Mobile, Inc. http://www.torchmobile.com/
  * Copyright (C) 2010 Google Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 109 matching lines @@
   if (match(tagImpl, scriptTag))
     return scriptTag.localName();
   if (match(tagImpl, videoTag))
     return videoTag.localName();
   NOTREACHED();
   return emptyString;
 }
 
 static bool mediaAttributeMatches(const MediaValuesCached& mediaValues,
                                   const String& attributeValue) {
-  MediaQuerySet* mediaQueries = MediaQuerySet::create(attributeValue);
+  RefPtr<MediaQuerySet> mediaQueries = MediaQuerySet::create(attributeValue);
   MediaQueryEvaluator mediaQueryEvaluator(mediaValues);
-  return mediaQueryEvaluator.eval(mediaQueries);
+  return mediaQueryEvaluator.eval(*mediaQueries);
 }
 
 class TokenPreloadScanner::StartTagScanner {
   STACK_ALLOCATED();
 
  public:
   StartTagScanner(const StringImpl* tagImpl, MediaValuesCached* mediaValues)
       : m_tagImpl(tagImpl),
         m_linkIsStyleSheet(false),
         m_linkIsPreconnect(false),
@@ skipping 783 matching lines @@
   defaultViewportMinWidth = document->viewportDefaultMinWidth();
   viewportMetaZeroValuesQuirk =
       document->settings() &&
       document->settings()->getViewportMetaZeroValuesQuirk();
   viewportMetaEnabled =
       document->settings() && document->settings()->getViewportMetaEnabled();
   referrerPolicy = document->getReferrerPolicy();
 }
 
 }  // namespace blink