Oilpan: Move MediaStreamSource, MediaStreamComponent and MediaStreamDescriptor to oilpan's heap

Source/platform/exported/WebMediaStreamSource.cpp

Index: Source/platform/exported/WebMediaStreamSource.cpp
diff --git a/Source/platform/exported/WebMediaStreamSource.cpp b/Source/platform/exported/WebMediaStreamSource.cpp
index b7db6a8ce7676c1f1502df418629f08667fc7a4a..cb486372a9a099b78c8f449ca6a5ecfbe597dd57 100644
--- a/Source/platform/exported/WebMediaStreamSource.cpp
+++ b/Source/platform/exported/WebMediaStreamSource.cpp
@@ -69,7 +69,7 @@ void WebMediaStreamSource::ExtraData::setOwner(MediaStreamSource* owner)
     m_owner = owner;
 }
 
-WebMediaStreamSource::WebMediaStreamSource(const PassRefPtr<MediaStreamSource>& mediaStreamSource)
+WebMediaStreamSource::WebMediaStreamSource(MediaStreamSource* mediaStreamSource)
     : m_private(mediaStreamSource)
 {
 }
@@ -90,11 +90,6 @@ void WebMediaStreamSource::reset()
     m_private.reset();
 }
 
-WebMediaStreamSource::operator PassRefPtr<MediaStreamSource>() const
-{
-    return m_private.get();
-}
-
 WebMediaStreamSource::operator MediaStreamSource*() const
 {
     return m_private.get();