Use one scoped_refptr.

webrtc/modules/rtp_rtcp/source/forward_error_correction.cc

Index: webrtc/modules/rtp_rtcp/source/forward_error_correction.cc
diff --git a/webrtc/modules/rtp_rtcp/source/forward_error_correction.cc b/webrtc/modules/rtp_rtcp/source/forward_error_correction.cc
index abef1dda3027bb0e714500a4964a8d469bfb65dd..a9e88a5bca197f460fbea1263b9807ace128f434 100644
--- a/webrtc/modules/rtp_rtcp/source/forward_error_correction.cc
+++ b/webrtc/modules/rtp_rtcp/source/forward_error_correction.cc
@@ -55,7 +55,7 @@ int32_t ForwardErrorCorrection::Packet::Release() {
 // TODO(holmer): Refactor into a proper class.
 class ProtectedPacket : public ForwardErrorCorrection::SortablePacket {
  public:
-  scoped_refptr<ForwardErrorCorrection::Packet> pkt;
+  rtc::scoped_refptr<ForwardErrorCorrection::Packet> pkt;
 };
 
 typedef std::list<ProtectedPacket*> ProtectedPacketList;
@@ -68,7 +68,7 @@ class FecPacket : public ForwardErrorCorrection::SortablePacket {
  public:
   ProtectedPacketList protected_pkt_list;
   uint32_t ssrc;  // SSRC of the current frame.
-  scoped_refptr<ForwardErrorCorrection::Packet> pkt;
+  rtc::scoped_refptr<ForwardErrorCorrection::Packet> pkt;
 };
 
 bool ForwardErrorCorrection::SortablePacket::LessThan(