rtcp::Pli moved into own file and got a Parse function

webrtc/modules/rtp_rtcp/source/rtcp_packet.cc

Index: webrtc/modules/rtp_rtcp/source/rtcp_packet.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_packet.cc b/webrtc/modules/rtp_rtcp/source/rtcp_packet.cc
index e3305186a0583896dac6e87000e64f498b0b38c5..d23abdcdcf43663e5c8faa6b5fbe169e190a9848 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_packet.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_packet.cc
@@ -31,7 +31,6 @@ using webrtc::RTCPUtility::RTCPPacketAPP;
 using webrtc::RTCPUtility::RTCPPacketPSFBAPP;
 using webrtc::RTCPUtility::RTCPPacketPSFBFIR;
 using webrtc::RTCPUtility::RTCPPacketPSFBFIRItem;
-using webrtc::RTCPUtility::RTCPPacketPSFBPLI;
 using webrtc::RTCPUtility::RTCPPacketPSFBREMBItem;
 using webrtc::RTCPUtility::RTCPPacketPSFBRPSI;
 using webrtc::RTCPUtility::RTCPPacketPSFBSLI;
@@ -203,34 +202,6 @@ void CreateSdes(const std::vector<Sdes::Chunk>& chunks,
   }
 }
 
-// RFC 4585: Feedback format.
-//
-// Common packet format:
-//
-//    0                   1                   2                   3
-//    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
-//   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-//   |V=2|P|   FMT   |       PT      |          length               |
-//   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-//   |                  SSRC of packet sender                        |
-//   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-//   |                  SSRC of media source                         |
-//   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-//   :            Feedback Control Information (FCI)                 :
-//   :
-//
-
-// Picture loss indication (PLI) (RFC 4585).
-//
-// FCI: no feedback control information.
-
-void CreatePli(const RTCPPacketPSFBPLI& pli,
-               uint8_t* buffer,
-               size_t* pos) {
-  AssignUWord32(buffer, pos, pli.SenderSSRC);
-  AssignUWord32(buffer, pos, pli.MediaSSRC);
-}
-
 // Slice loss indication (SLI) (RFC 4585).
 //
 // FCI:
@@ -777,20 +748,6 @@ size_t Sdes::BlockLength() const {
   return length;
 }
 
-bool Pli::Create(uint8_t* packet,
-                 size_t* index,
-                 size_t max_length,
-                 RtcpPacket::PacketReadyCallback* callback) const {
-  while (*index + BlockLength() > max_length) {
-    if (!OnBufferFull(packet, index, callback))
-      return false;
-  }
-  const uint8_t kFmt = 1;
-  CreateHeader(kFmt, PT_PSFB, HeaderLength(), packet, index);
-  CreatePli(pli_, packet, index);
-  return true;
-}
-
 bool Sli::Create(uint8_t* packet,
                  size_t* index,
                  size_t max_length,