Move MediaQuery classes off BlinkGC heap

third_party/WebKit/Source/core/css/parser/MediaConditionTest.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/css/MediaList.h"
 #include "core/css/MediaQuery.h"
 #include "core/css/parser/CSSTokenizer.h"
 #include "core/css/parser/MediaQueryParser.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "wtf/text/StringBuilder.h"
@@ skipping 20 matching lines @@
        "(max-width: 900px) and (min-width: 100px)"},
       {"(min-width: [100px) and (max-width: 900px)", "not all"},
       {"not (min-width: 900px)", "not all and (min-width: 900px)"},
       {"not (blabla)", "not all"},
       {0, 0}  // Do not remove the terminator line.
   };
 
   // FIXME: We should test comma-seperated media conditions
   for (unsigned i = 0; testCases[i].input; ++i) {
     CSSTokenizer tokenizer(testCases[i].input);
-    MediaQuerySet* mediaConditionQuerySet =
+    RefPtr<MediaQuerySet> mediaConditionQuerySet =
         MediaQueryParser::parseMediaCondition(tokenizer.tokenRange());
     ASSERT_EQ(mediaConditionQuerySet->queryVector().size(), (unsigned)1);
     String queryText = mediaConditionQuerySet->queryVector()[0]->cssText();
     ASSERT_STREQ(testCases[i].output, queryText.ascii().data());
   }
 }
 
 }  // namespace blink