Fix oilpan build of MediaQuerySetTest.

TBR=haraken@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/180533008

git-svn-id: svn://svn.chromium.org/blink/trunk@168614 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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

@@ -119,7 +119,7 @@ TEST(MediaQueryParserTest, Basic)
     };
 
     for (unsigned i = 0; testCases[i].input; ++i) {
-        RefPtr<MediaQuerySet> querySet = MediaQuerySet::create(testCases[i].input);
+        RefPtrWillBeRawPtr<MediaQuerySet> querySet = MediaQuerySet::create(testCases[i].input);
         StringBuilder output;
         char outputCharArray[outputCharArrayLen];
         size_t j = 0;