Unify rtcp packet setters

webrtc/modules/rtp_rtcp/source/rtcp_packet/pli_unittest.cc

 /*
  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 22 matching lines @@
   Pli mutable_parsed;
   EXPECT_TRUE(test::ParseSinglePacket(kPacket, &mutable_parsed));
   const Pli& parsed = mutable_parsed;  // Read values from constant object.
 
   EXPECT_EQ(kSenderSsrc, parsed.sender_ssrc());
   EXPECT_EQ(kRemoteSsrc, parsed.media_ssrc());
 }
 
 TEST(RtcpPacketPliTest, Create) {
   Pli pli;
-  pli.From(kSenderSsrc);
-  pli.To(kRemoteSsrc);
+  pli.SetSenderSsrc(kSenderSsrc);
+  pli.SetMediaSsrc(kRemoteSsrc);
 
   rtc::Buffer packet = pli.Build();
 
   EXPECT_THAT(make_tuple(packet.data(), packet.size()),
       ElementsAreArray(kPacket));
 }
 
 TEST(RtcpPacketPliTest, ParseFailsOnTooSmallPacket) {
   const uint8_t kTooSmallPacket[] = {0x81, 206,  0x00, 0x01,
                                      0x12, 0x34, 0x56, 0x78};
 
   Pli parsed;
   EXPECT_FALSE(test::ParseSinglePacket(kTooSmallPacket, &parsed));
 }
 
 }  // namespace webrtc