Negotiate H264 profiles in SDP

webrtc/common_video/h264/profile_level_id_unittest.cc

 /*
  *  Copyright (c) 2016 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 134 matching lines @@
 TEST(H264ProfileLevelId, TestParseSdpProfileLevelIdInvalid) {
   CodecParameterMap params;
   params["profile-level-id"] = "foobar";
   EXPECT_FALSE(ParseSdpProfileLevelId(params));
 }
 
 TEST(H264ProfileLevelId, TestGenerateProfileLevelIdForAnswerEmpty) {
   CodecParameterMap answer_params;
   GenerateProfileLevelIdForAnswer(CodecParameterMap(), CodecParameterMap(),
                                   &answer_params);
-  EXPECT_EQ("42e01f", answer_params["profile-level-id"]);
+  EXPECT_TRUE(answer_params.empty());
 }
 
 TEST(H264ProfileLevelId,
      TestGenerateProfileLevelIdForAnswerLevelSymmetryCapped) {
   CodecParameterMap low_level;
   low_level["profile-level-id"] = "42e015";
   CodecParameterMap high_level;
   high_level["profile-level-id"] = "42e01f";
 
   // Level asymmetry is not allowed; test that answer level is the lower of the
@@ skipping 21 matching lines @@
   remote_params["level-asymmetry-allowed"] = "1";
   CodecParameterMap answer_params;
   GenerateProfileLevelIdForAnswer(local_params, remote_params, &answer_params);
   // When level asymmetry is allowed, we can answer a higher level than what was
   // offered.
   EXPECT_EQ("42e01f", answer_params["profile-level-id"]);
 }
 
 }  // namespace H264
 }  // namespace webrtc