Convert media constants to constexpr.

media/formats/mp2t/ts_section_pes.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/mp2t/ts_section_pes.h"
 
 #include <memory>
 
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 204 matching lines @@
     RCHECK(bit_reader.ReadBits(40, &dts_section));
     RCHECK((((pts_section >> 36) & 0xf) == 0x3) &&
            IsTimestampSectionValid(pts_section));
     RCHECK((((dts_section >> 36) & 0xf) == 0x1) &&
            IsTimestampSectionValid(dts_section));
     is_pts_valid = true;
     is_dts_valid = true;
   }
 
   // Convert and unroll the timestamps.
-  base::TimeDelta media_pts(kNoTimestamp());
+  base::TimeDelta media_pts(kNoTimestamp);
   DecodeTimestamp media_dts(kNoDecodeTimestamp());
   if (is_pts_valid) {
     int64_t pts = timestamp_unroller_->GetUnrolledTimestamp(
         ConvertTimestampSectionToTimestamp(pts_section));
     media_pts = base::TimeDelta::FromMicroseconds((1000 * pts) / 90);
   }
   if (is_dts_valid) {
     int64_t dts = timestamp_unroller_->GetUnrolledTimestamp(
         ConvertTimestampSectionToTimestamp(dts_section));
     media_dts = DecodeTimestamp::FromMicroseconds((1000 * dts) / 90);
@@ skipping 16 matching lines @@
   return es_parser_->Parse(&raw_pes[es_offset], es_size, media_pts, media_dts);
 }
 
 void TsSectionPes::ResetPesState() {
   pes_byte_queue_.Reset();
   wait_for_pusi_ = true;
 }
 
 }  // namespace mp2t
 }  // namespace media