Oilpan: Change LoadableTextTrack::m_trackElement a strong Member

Source/core/html/track/LoadableTextTrack.cpp

Index: Source/core/html/track/LoadableTextTrack.cpp
diff --git a/Source/core/html/track/LoadableTextTrack.cpp b/Source/core/html/track/LoadableTextTrack.cpp
index 9544b18b9fbe35d59bb317713321506508bd7b16..bd52aa4b1655740e2284bb8df55bbdd2c6ee2819 100644
--- a/Source/core/html/track/LoadableTextTrack.cpp
+++ b/Source/core/html/track/LoadableTextTrack.cpp
@@ -61,8 +61,10 @@ void LoadableTextTrack::clearTrackElement()
 void LoadableTextTrack::setMode(const AtomicString& mode)
 {
     TextTrack::setMode(mode);
+#if !ENABLE(OILPAN)
     if (!m_trackElement)
         return;
+#endif
 
     if (m_trackElement->readyState() == HTMLTrackElement::NONE)
         m_trackElement->scheduleLoad();
@@ -98,8 +100,10 @@ void LoadableTextTrack::loadTimerFired(Timer<LoadableTextTrack>*)
     if (m_loader)
         m_loader->cancelLoad();
 
+#if !ENABLE(OILPAN)
     if (!m_trackElement)
         return;
+#endif
 
     // 4.8.10.12.3 Sourcing out-of-band text tracks (continued)
 
@@ -134,8 +138,10 @@ void LoadableTextTrack::cueLoadingCompleted(TextTrackLoader* loader, bool loadin
 {
     ASSERT_UNUSED(loader, m_loader == loader);
 
+#if !ENABLE(OILPAN)
     if (!m_trackElement)
         return;
+#endif
 
     m_trackElement->didCompleteLoad(loadingFailed ? HTMLTrackElement::Failure : HTMLTrackElement::Success);
 }