Oilpan: Remove raw pointer to LocalFrame from MediaValuesDynamic

Source/core/css/MediaValuesDynamic.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 "config.h"
 #include "core/css/MediaValuesDynamic.h"
 
 #include "core/css/CSSHelper.h"
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/css/CSSToLengthConversionData.h"
 #include "core/css/MediaValuesCached.h"
 #include "core/dom/Document.h"
 #include "core/frame/LocalFrame.h"
 
 namespace blink {
 
-PassRefPtr<MediaValues> MediaValuesDynamic::create(Document& document)
+PassRefPtrWillBeRawPtr<MediaValues> MediaValuesDynamic::create(Document& document)
 {
     return MediaValuesDynamic::create(frameFrom(document));
 }
 
-PassRefPtr<MediaValues> MediaValuesDynamic::create(LocalFrame* frame)
+PassRefPtrWillBeRawPtr<MediaValues> MediaValuesDynamic::create(LocalFrame* frame)
 {
     if (!frame || !frame->view() || !frame->document() || !frame->document()->layoutView())
         return MediaValuesCached::create();
-    return adoptRef(new MediaValuesDynamic(frame));
+    return adoptRefWillBeNoop(new MediaValuesDynamic(frame));
 }
 
 MediaValuesDynamic::MediaValuesDynamic(LocalFrame* frame)
     : m_frame(frame)
 {
     ASSERT(m_frame);
 }
 
-PassRefPtr<MediaValues> MediaValuesDynamic::copy() const
+PassRefPtrWillBeRawPtr<MediaValues> MediaValuesDynamic::copy() const
 {
-    return adoptRef(new MediaValuesDynamic(m_frame));
+    return adoptRefWillBeNoop(new MediaValuesDynamic(m_frame));
 }
 
 bool MediaValuesDynamic::computeLength(double value, CSSPrimitiveValue::UnitType type, int& result) const
 {
     return MediaValues::computeLength(value,
         type,
         calculateDefaultFontSize(m_frame),
         calculateViewportWidth(m_frame),
         calculateViewportHeight(m_frame),
         result);
@@ skipping 92 matching lines @@
 Document* MediaValuesDynamic::document() const
 {
     return m_frame->document();
 }
 
 bool MediaValuesDynamic::hasValues() const
 {
     return m_frame;
 }
 
+DEFINE_TRACE(MediaValuesDynamic)
+{
+    visitor->trace(m_frame);
+    MediaValues::trace(visitor);
+}
+
 } // namespace