Move MediaQuery classes off BlinkGC heap

third_party/WebKit/Source/core/css/MediaQueryMatcher.cpp

Index: third_party/WebKit/Source/core/css/MediaQueryMatcher.cpp
diff --git a/third_party/WebKit/Source/core/css/MediaQueryMatcher.cpp b/third_party/WebKit/Source/core/css/MediaQueryMatcher.cpp
index 70b49fedd843b6332dc765796acbbcfa0ef473f1..2acba92d457d5fe0f6739cc9e2fee4def760c5c3 100644
--- a/third_party/WebKit/Source/core/css/MediaQueryMatcher.cpp
+++ b/third_party/WebKit/Source/core/css/MediaQueryMatcher.cpp
@@ -66,7 +66,7 @@ bool MediaQueryMatcher::evaluate(const MediaQuerySet* media) {
     m_evaluator = createEvaluator();
 
   if (m_evaluator)
-    return m_evaluator->eval(media);
+    return m_evaluator->eval(*media);
 
   return false;
 }
@@ -75,7 +75,7 @@ MediaQueryList* MediaQueryMatcher::matchMedia(const String& query) {
   if (!m_document)
     return nullptr;
 
-  MediaQuerySet* media = MediaQuerySet::create(query);
+  RefPtr<MediaQuerySet> media = MediaQuerySet::create(query);
   return MediaQueryList::create(m_document, this, media);
 }