Convert media constants to constexpr.

media/base/audio_buffer_queue_unittest.cc

 // Copyright 2013 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/base/audio_buffer_queue.h"
 
 #include <stdint.h>
 
 #include <limits>
 #include <memory>
@@ skipping 24 matching lines @@
     }
   }
 }
 
 template <typename T>
 static scoped_refptr<AudioBuffer> MakeTestBuffer(SampleFormat format,
                                                  ChannelLayout channel_layout,
                                                  T start,
                                                  T step,
                                                  int frames) {
-  return MakeAudioBuffer<T>(format,
-                            channel_layout,
+  return MakeAudioBuffer<T>(format, channel_layout,
                             ChannelLayoutToChannelCount(channel_layout),
-                            kSampleRate,
-                            start,
-                            step,
-                            frames,
-                            kNoTimestamp());
+                            kSampleRate, start, step, frames, kNoTimestamp);
 }
 
 TEST(AudioBufferQueueTest, AppendAndClear) {
   const ChannelLayout channel_layout = CHANNEL_LAYOUT_MONO;
   AudioBufferQueue buffer;
   EXPECT_EQ(0, buffer.frames());
   buffer.Append(
       MakeTestBuffer<uint8_t>(kSampleFormatU8, channel_layout, 10, 1, 8));
   EXPECT_EQ(8, buffer.frames());
   buffer.Clear();
@@ skipping 286 matching lines @@
   EXPECT_EQ(5, buffer.PeekFrames(5, 10, 0, bus1.get()));
   VerifyBus(bus1.get(), 0, 5, bus1->frames(), 40, 1);
 
   // Peek to the end of the buffer.
   EXPECT_EQ(30, buffer.frames());
   EXPECT_EQ(30, buffer.PeekFrames(60, 0, 0, bus1.get()));
   EXPECT_EQ(30, buffer.PeekFrames(30, 0, 0, bus1.get()));
 }
 
 }  // namespace media