Change RtcpPacket::PacketReadyCallback to rtc::FunctionView

from interface


Bug: webrtc:5565
Change-Id: I2df5d7a0554b938888581f1c73dbdb8b85c387cc
Reviewed-on: https://webrtc-review.googlesource.com/8680
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21136}

modules/rtp_rtcp/source/rtcp_packet/app.cc

@@ -77,7 +77,7 @@ size_t App::BlockLength() const {
 bool App::Create(uint8_t* packet,
                  size_t* index,
                  size_t max_length,
-                 RtcpPacket::PacketReadyCallback* callback) const {
+                 PacketReadyCallback callback) const {
   while (*index + BlockLength() > max_length) {
     if (!OnBufferFull(packet, index, callback))
       return false;