Convert media constants to constexpr.

testing/libfuzzer/fuzzers/es_parser_h264_fuzzer.cc

 // Copyright 2015 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 <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "media/formats/mp2t/es_parser_h264.h"
 
 static void NewVideoConfig(const media::VideoDecoderConfig& config) {}
 static void EmitBuffer(scoped_refptr<media::StreamParserBuffer> buffer) {}
 
 // Entry point for LibFuzzer.
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   media::mp2t::EsParserH264 es_parser(base::Bind(&NewVideoConfig),
                                       base::Bind(&EmitBuffer));
-  if (!es_parser.Parse(data, size, media::kNoTimestamp(),
+  if (!es_parser.Parse(data, size, media::kNoTimestamp,
                        media::kNoDecodeTimestamp())) {
     return 0;
   }
   return 0;
 }