Convert media constants to constexpr.

media/filters/audio_decoder_unittest.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 <stddef.h>
 #include <stdint.h>
 
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 91 matching lines @@
 
 // Marks negative timestamp buffers for discard or transfers FFmpeg's built in
 // discard metadata in favor of setting DiscardPadding on the DecoderBuffer.
 // Allows better testing of AudioDiscardHelper usage.
 static void SetDiscardPadding(AVPacket* packet,
                               const scoped_refptr<DecoderBuffer> buffer,
                               double samples_per_second) {
   // Discard negative timestamps.
   if (buffer->timestamp() + buffer->duration() < base::TimeDelta()) {
     buffer->set_discard_padding(
-        std::make_pair(kInfiniteDuration(), base::TimeDelta()));
+        std::make_pair(kInfiniteDuration, base::TimeDelta()));
     return;
   }
   if (buffer->timestamp() < base::TimeDelta()) {
     buffer->set_discard_padding(
         std::make_pair(-buffer->timestamp(), base::TimeDelta()));
     return;
   }
 
   // If the timestamp is positive, try to use FFmpeg's discard data.
   int skip_samples_size = 0;
@@ skipping 322 matching lines @@
 TEST_P(AudioDecoderTest, Reset) {
   SKIP_TEST_IF_NO_MEDIA_CODEC();
   ASSERT_NO_FATAL_FAILURE(Initialize());
   Reset();
 }
 
 TEST_P(AudioDecoderTest, NoTimestamp) {
   SKIP_TEST_IF_NO_MEDIA_CODEC();
   ASSERT_NO_FATAL_FAILURE(Initialize());
   scoped_refptr<DecoderBuffer> buffer(new DecoderBuffer(0));
-  buffer->set_timestamp(kNoTimestamp());
+  buffer->set_timestamp(kNoTimestamp);
   DecodeBuffer(buffer);
   EXPECT_EQ(DecodeStatus::DECODE_ERROR, last_decode_status());
 }
 
 TEST_P(OpusAudioDecoderBehavioralTest, InitializeWithNoCodecDelay) {
   ASSERT_EQ(GetParam().decoder_type, OPUS);
   std::vector<uint8_t> extra_data(
       kOpusExtraData,
       kOpusExtraData + arraysize(kOpusExtraData));
   AudioDecoderConfig decoder_config;
@@ skipping 154 matching lines @@
 };
 
 INSTANTIATE_TEST_CASE_P(FFmpegAudioDecoderTest,
                         AudioDecoderTest,
                         testing::ValuesIn(kFFmpegTests));
 INSTANTIATE_TEST_CASE_P(FFmpegAudioDecoderBehavioralTest,
                         FFmpegAudioDecoderBehavioralTest,
                         testing::ValuesIn(kFFmpegBehavioralTest));
 
 }  // namespace media