Convert media constants to constexpr.

media/formats/mp4/mp4_stream_parser.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/formats/mp4/mp4_stream_parser.h"
 
 #include <stddef.h>
 
 #include <limits>
 #include <memory>
@@ skipping 382 matching lines @@
     // See https://crbug.com/597073
     if (track->media.handler.type == kText)
       detected_text_track_count++;
   }
 
   if (!moov_->pssh.empty())
     OnEncryptedMediaInitData(moov_->pssh);
 
   RCHECK(config_cb_.Run(std::move(media_tracks), TextTrackConfigMap()));
 
-  StreamParser::InitParameters params(kInfiniteDuration());
+  StreamParser::InitParameters params(kInfiniteDuration);
   if (moov_->extends.header.fragment_duration > 0) {
     params.duration = TimeDeltaFromRational(
         moov_->extends.header.fragment_duration, moov_->header.timescale);
     params.liveness = DemuxerStream::LIVENESS_RECORDED;
   } else if (moov_->header.duration > 0 &&
              moov_->header.duration != std::numeric_limits<uint64_t>::max()) {
     params.duration =
         TimeDeltaFromRational(moov_->header.duration, moov_->header.timescale);
     params.liveness = DemuxerStream::LIVENESS_RECORDED;
   } else {
@@ skipping 294 matching lines @@
       runs.AdvanceSample();
     }
     runs.AdvanceRun();
   }
 
   return true;
 }
 
 }  // namespace mp4
 }  // namespace media