Oilpan: Remove raw pointer to LocalFrame from MediaValuesDynamic

Source/core/inspector/InspectorCSSAgent.cpp

Index: Source/core/inspector/InspectorCSSAgent.cpp
diff --git a/Source/core/inspector/InspectorCSSAgent.cpp b/Source/core/inspector/InspectorCSSAgent.cpp
index 1a8bbde1057b688c663d3deaa3e199cf1cc6251f..832eda7fa59a2cfbe2f86db2db60a9bb6e587c1c 100644
--- a/Source/core/inspector/InspectorCSSAgent.cpp
+++ b/Source/core/inspector/InspectorCSSAgent.cpp
@@ -1063,7 +1063,7 @@ PassRefPtr<TypeBuilder::CSS::CSSMedia> InspectorCSSAgent::buildMediaObject(const
 
     InspectorStyleSheet* inspectorStyleSheet = parentStyleSheet ? m_cssStyleSheetToInspectorStyleSheet.get(parentStyleSheet) : nullptr;
     RefPtr<TypeBuilder::Array<TypeBuilder::CSS::MediaQuery> > mediaListArray = TypeBuilder::Array<TypeBuilder::CSS::MediaQuery>::create();
-    RefPtr<MediaValues> mediaValues = MediaValues::createDynamicIfFrameExists(frame);
+    RefPtrWillBeRawPtr<MediaValues> mediaValues = MediaValues::createDynamicIfFrameExists(frame);
     bool hasMediaQueryItems = false;
     for (size_t i = 0; i < queryVector.size(); ++i) {
         MediaQuery* query = queryVector.at(i).get();