Convert media constants to constexpr.

media/formats/webm/webm_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/webm/webm_stream_parser.h"
 
 #include <memory>
 #include <string>
 
 #include "base/callback.h"
@@ skipping 182 matching lines @@
 
   WebMTracksParser tracks_parser(media_log_, ignore_text_tracks_);
   result = tracks_parser.Parse(cur, cur_size);
 
   if (result <= 0)
     return result;
 
   bytes_parsed += result;
 
   double timecode_scale_in_us = info_parser.timecode_scale() / 1000.0;
-  InitParameters params(kInfiniteDuration());
+  InitParameters params(kInfiniteDuration);
 
   if (info_parser.duration() > 0) {
     int64_t duration_in_us = info_parser.duration() * timecode_scale_in_us;
     params.duration = base::TimeDelta::FromMicroseconds(duration_in_us);
   }
 
   params.timeline_offset = info_parser.date_utc();
 
   if (unknown_segment_size_ && (info_parser.duration() <= 0) &&
       !info_parser.date_utc().is_null()) {
@@ skipping 69 matching lines @@
 
   return bytes_parsed;
 }
 
 void WebMStreamParser::OnEncryptedMediaInitData(const std::string& key_id) {
   std::vector<uint8_t> key_id_vector(key_id.begin(), key_id.end());
   encrypted_media_init_data_cb_.Run(EmeInitDataType::WEBM, key_id_vector);
 }
 
 }  // namespace media