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(tag_impl, scriptTag))
     return scriptTag.LocalName();
   if (Match(tag_impl, videoTag))
     return videoTag.LocalName();
   NOTREACHED();
   return g_empty_string;
 }
 
 static bool MediaAttributeMatches(const MediaValuesCached& media_values,
                                   const String& attribute_value) {
-  MediaQuerySet* media_queries = MediaQuerySet::Create(attribute_value);
+  RefPtr<MediaQuerySet> media_queries = MediaQuerySet::Create(attribute_value);
   MediaQueryEvaluator media_query_evaluator(media_values);
-  return media_query_evaluator.Eval(media_queries);
+  return media_query_evaluator.Eval(*media_queries);
 }
 
 class TokenPreloadScanner::StartTagScanner {
   STACK_ALLOCATED();
 
  public:
   StartTagScanner(const StringImpl* tag_impl, MediaValuesCached* media_values)
       : tag_impl_(tag_impl),
         link_is_style_sheet_(false),
         link_is_preconnect_(false),
@@ skipping 802 matching lines @@
   default_viewport_min_width = document->ViewportDefaultMinWidth();
   viewport_meta_zero_values_quirk =
       document->GetSettings() &&
       document->GetSettings()->GetViewportMetaZeroValuesQuirk();
   viewport_meta_enabled = document->GetSettings() &&
                           document->GetSettings()->GetViewportMetaEnabled();
   referrer_policy = document->GetReferrerPolicy();
 }
 
 }  // namespace blink