Remove base::SupportsWeakPtr and base::NonThreadSafe from PacedSender

media/cast/net/pacing/paced_sender.h

 // 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.
 
 #ifndef MEDIA_CAST_NET_PACING_PACED_SENDER_H_
 #define MEDIA_CAST_NET_PACING_PACED_SENDER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 78 matching lines @@
  public:
   virtual bool SendPackets(const SendPacketVector& packets) = 0;
   virtual bool ResendPackets(const SendPacketVector& packets,
                              const DedupInfo& dedup_info) = 0;
   virtual bool SendRtcpPacket(uint32_t ssrc, PacketRef packet) = 0;
   virtual void CancelSendingPacket(const PacketKey& packet_key) = 0;
 
   virtual ~PacedPacketSender() {}
 };
 
-class PacedSender : public PacedPacketSender,
-                    public base::NonThreadSafe,
-                    public base::SupportsWeakPtr<PacedSender> {
+class PacedSender : public PacedPacketSender {
  public:
   // |recent_packet_events| is an externally-owned vector where PacedSender will
   // add PacketEvents related to sending, retransmission, and rejection.  The
   // |external_transport| should only be used by the Cast receiver and for
   // testing.
   PacedSender(
       size_t target_burst_size,  // Should normally be kTargetBurstSize.
       size_t max_burst_size,     // Should normally be kMaxBurstSize.
       base::TickClock* clock,
       std::vector<PacketEvent>* recent_packet_events,
@@ skipping 133 matching lines @@
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<PacedSender> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PacedSender);
 };
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_NET_PACING_PACED_SENDER_H_