Delete some dead files

media/cast/net/rtcp/rtcp_builder.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_RTCP_RTCP_BUILDER_H_
-#define MEDIA_CAST_NET_RTCP_RTCP_BUILDER_H_
-
-#include <list>
-#include <string>
-#include <vector>
-
-#include "media/cast/net/cast_transport_defines.h"
-#include "media/cast/net/pacing/paced_sender.h"
-
-namespace media {
-namespace cast {
-
-class RtcpBuilder {
- public:
-  explicit RtcpBuilder(PacedSender* const paced_packet_sender);
-
-  virtual ~RtcpBuilder();
-
-  void SendRtcpFromRtpSender(uint32 packet_type_flags,
-                             const RtcpSenderInfo& sender_info,
-                             const RtcpDlrrReportBlock& dlrr,
-                             uint32 ssrc);
-
- private:
-  bool BuildSR(const RtcpSenderInfo& sender_info, Packet* packet) const;
-  bool BuildDlrrRb(const RtcpDlrrReportBlock& dlrr,
-                   Packet* packet) const;
-
-  PacedSender* const transport_;  // Not owned by this class.
-  uint32 ssrc_;
-
-  DISALLOW_COPY_AND_ASSIGN(RtcpBuilder);
-};
-
-}  // namespace cast
-}  // namespace media
-
-#endif  // MEDIA_CAST_NET_RTCP_RTCP_BUILDER_H_