Optimize FindCodecById and ReferencedCodecsMatch

webrtc/pc/mediasession_unittest.cc

 /*
  *  Copyright 2004 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 174 matching lines @@
 
 static cricket::MediaContentDirection
 GetMediaDirection(const ContentInfo* content) {
   cricket::MediaContentDescription* desc =
       reinterpret_cast<cricket::MediaContentDescription*>(content->description);
   return desc->direction();
 }
 
 static void AddRtxCodec(const VideoCodec& rtx_codec,
                         std::vector<VideoCodec>* codecs) {
-  VideoCodec rtx;
-  ASSERT_FALSE(cricket::FindCodecById(*codecs, rtx_codec.id, &rtx));
+  ASSERT_FALSE(cricket::FindCodecById(*codecs, rtx_codec.id));
   codecs->push_back(rtx_codec);
 }
 
 template <class T>
 static std::vector<std::string> GetCodecNames(const std::vector<T>& codecs) {
   std::vector<std::string> codec_names;
   for (const auto& codec : codecs) {
     codec_names.push_back(codec.name);
   }
   return codec_names;
@@ skipping 2694 matching lines @@
                         ::testing::Combine(
                              ::testing::Values(cricket::MD_SENDONLY,
                                                cricket::MD_RECVONLY,
                                                cricket::MD_SENDRECV,
                                                cricket::MD_INACTIVE),
                              ::testing::Values(cricket::MD_SENDONLY,
                                                cricket::MD_RECVONLY,
                                                cricket::MD_SENDRECV,
                                                cricket::MD_INACTIVE),
                              ::testing::Bool()));