Add Cast PLI support on sender side.

chrome/renderer/media/cast_transport_sender_ipc.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 CHROME_RENDERER_MEDIA_CAST_TRANSPORT_SENDER_IPC_H_
 #define CHROME_RENDERER_MEDIA_CAST_TRANSPORT_SENDER_IPC_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 19 matching lines @@
       const media::cast::PacketReceiverCallback& packet_callback,
       const media::cast::CastTransportStatusCallback& status_cb,
       const media::cast::BulkRawEventsCallback& raw_events_cb);
 
   ~CastTransportSenderIPC() override;
 
   // media::cast::CastTransportSender implementation.
   void InitializeAudio(
       const media::cast::CastTransportRtpConfig& config,
       const media::cast::RtcpCastMessageCallback& cast_message_cb,
-      const media::cast::RtcpRttCallback& rtt_cb) override;
+      const media::cast::RtcpRttCallback& rtt_cb,
+      const media::cast::RtcpPliCallback& pli_cb) override;
   void InitializeVideo(
       const media::cast::CastTransportRtpConfig& config,
       const media::cast::RtcpCastMessageCallback& cast_message_cb,
-      const media::cast::RtcpRttCallback& rtt_cb) override;
+      const media::cast::RtcpRttCallback& rtt_cb,
+      const media::cast::RtcpPliCallback& pli_cb) override;
   void InsertFrame(uint32_t ssrc,
                    const media::cast::EncodedFrame& frame) override;
   void SendSenderReport(
       uint32_t ssrc,
       base::TimeTicks current_time,
       media::cast::RtpTimeTicks current_time_as_rtp_timestamp) override;
   void CancelSendingFrames(uint32_t ssrc,
                            const std::vector<uint32_t>& frame_ids) override;
   void ResendFrameForKickstart(uint32_t ssrc, uint32_t frame_id) override;
   void AddValidSsrc(uint32_t ssrc) override;
   void SendRtcpFromRtpReceiver(
       uint32_t ssrc,
       uint32_t sender_ssrc,
       const media::cast::RtcpTimeData& time_data,
       const media::cast::RtcpCastMessage* cast_message,
+      const media::cast::RtcpPliMessage* pli_message,
       base::TimeDelta target_delay,
       const media::cast::ReceiverRtcpEventSubscriber::RtcpEvents* rtcp_events,
       const media::cast::RtpReceiverStatistics* rtp_receiver_statistics)
       override;
 
   void SetOptions(const base::DictionaryValue& options) final {}
 
   void OnNotifyStatusChange(
       media::cast::CastTransportStatus status);
   void OnRawEvents(const std::vector<media::cast::PacketEvent>& packet_events,
                    const std::vector<media::cast::FrameEvent>& frame_events);
   void OnRtt(uint32_t ssrc, base::TimeDelta rtt);
   void OnRtcpCastMessage(uint32_t ssrc,
                          const media::cast::RtcpCastMessage& cast_message);
+  void OnReceivedPli(uint32_t ssrc);
   void OnReceivedPacket(const media::cast::Packet& packet);
 
  private:
   struct ClientCallbacks {
     ClientCallbacks();
     ClientCallbacks(const ClientCallbacks& other);
     ~ClientCallbacks();
 
     media::cast::RtcpCastMessageCallback cast_message_cb;
     media::cast::RtcpRttCallback rtt_cb;
+    media::cast::RtcpPliCallback pli_cb;
   };
 
   void Send(IPC::Message* message);
 
   int32_t channel_id_;
   media::cast::PacketReceiverCallback packet_callback_;
   media::cast::CastTransportStatusCallback status_callback_;
   media::cast::BulkRawEventsCallback raw_events_callback_;
   typedef std::map<uint32_t, ClientCallbacks> ClientMap;
   ClientMap clients_;
 
   DISALLOW_COPY_AND_ASSIGN(CastTransportSenderIPC);
 };
 
 #endif  // CHROME_RENDERER_MEDIA_CAST_TRANSPORT_SENDER_IPC_H_