Convert media constants to constexpr.

media/filters/audio_renderer_algorithm_unittest.cc

 // Copyright (c) 2012 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.
 //
 // The format of these tests are to enqueue a known amount of data and then
 // request the exact amount we expect in order to dequeue the known amount of
 // data.  This ensures that for any rate we are consuming input data at the
 // correct rate.  We always pass in a very large destination buffer with the
 // expectation that FillBuffer() will fill as much as it can but no more.
 
@@ skipping 94 matching lines @@
   void FillAlgorithmQueue() {
     // The value of the data is meaningless; we just want non-zero data to
     // differentiate it from muted data.
     scoped_refptr<AudioBuffer> buffer;
     while (!algorithm_.IsQueueFull()) {
       switch (sample_format_) {
         case kSampleFormatU8:
           buffer = MakeAudioBuffer<uint8_t>(
               sample_format_, channel_layout_,
               ChannelLayoutToChannelCount(channel_layout_), samples_per_second_,
-              1, 1, kFrameSize, kNoTimestamp());
+              1, 1, kFrameSize, kNoTimestamp);
           break;
         case kSampleFormatS16:
           buffer = MakeAudioBuffer<int16_t>(
               sample_format_, channel_layout_,
               ChannelLayoutToChannelCount(channel_layout_), samples_per_second_,
-              1, 1, kFrameSize, kNoTimestamp());
+              1, 1, kFrameSize, kNoTimestamp);
           break;
         case kSampleFormatS32:
           buffer = MakeAudioBuffer<int32_t>(
               sample_format_, channel_layout_,
               ChannelLayoutToChannelCount(channel_layout_), samples_per_second_,
-              1, 1, kFrameSize, kNoTimestamp());
+              1, 1, kFrameSize, kNoTimestamp);
           break;
         default:
           NOTREACHED() << "Unrecognized format " << sample_format_;
       }
       algorithm_.EnqueueBuffer(buffer);
       frames_enqueued_ += kFrameSize;
     }
   }
 
   bool VerifyAudioData(AudioBus* bus, int offset, int frames, float value) {
@@ skipping 543 matching lines @@
     const int frames_filled =
         algorithm_.FillBuffer(bus.get(), kHalfSize, kHalfSize, kMutedRates[i]);
     ASSERT_EQ(kHalfSize, frames_filled);
     ASSERT_FALSE(VerifyAudioData(bus.get(), 0, kHalfSize, 0));
     ASSERT_TRUE(VerifyAudioData(bus.get(), kHalfSize, kHalfSize, 0));
     FillAlgorithmQueue();
   }
 }
 
 }  // namespace media