AudioConverter: Express delay in frames rather than msec.

media/base/audio_converter_perftest.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 <memory>
 
 #include "base/time/time.h"
 #include "media/base/audio_converter.h"
 #include "media/base/fake_audio_render_callback.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/perf/perf_test.h"
 
 namespace media {
 
 static const int kBenchmarkIterations = 200000;
 
 // InputCallback that zero's out the provided AudioBus.
 class NullInputProvider : public AudioConverter::InputCallback {
  public:
   NullInputProvider() {}
   ~NullInputProvider() override {}
 
-  double ProvideInput(AudioBus* audio_bus,
-                      base::TimeDelta buffer_delay) override {
+  double ProvideInput(AudioBus* audio_bus, uint32_t frames_delayed) override {
     audio_bus->Zero();
     return 1;
   }
 };
 
 void RunConvertBenchmark(const AudioParameters& in_params,
                          const AudioParameters& out_params,
                          bool fifo,
                          const std::string& trace_name) {
   NullInputProvider fake_input1;
@@ skipping 37 matching lines @@
                                2048);
   AudioParameters output_params(
       AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, 44100, 16, 440);
 
   RunConvertBenchmark(input_params, output_params, true, "convert_fifo_only");
   RunConvertBenchmark(input_params, output_params, false,
                       "convert_pass_through");
 }
 
 } // namespace media