Moved AudioUtil static functions to AudioManager interfaces

media/audio/audio_input_volume_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.
 
 #include <cmath>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "media/audio/audio_io.h"
 #include "media/audio/audio_manager_base.h"
@@ skipping 33 matching lines @@
 
   // Helper method which checks if the stream has volume support.
   bool HasDeviceVolumeControl(AudioInputStream* stream) {
     if (!stream)
       return false;
 
     return (stream->GetMaxVolume() != 0.0);
   }
 
   AudioInputStream* CreateAndOpenStream(const std::string& device_id) {
-    AudioParameters::Format format = AudioParameters::AUDIO_PCM_LOW_LATENCY;
-    ChannelLayout channel_layout =
-        media::GetAudioInputHardwareChannelLayout(device_id);
-    int bits_per_sample = 16;
-    int sample_rate =
-        static_cast<int>(media::GetAudioInputHardwareSampleRate(device_id));
-    int samples_per_packet = 0;
-#if defined(OS_MACOSX)
-    samples_per_packet = (sample_rate / 100);
-#elif defined(OS_LINUX) || defined(OS_OPENBSD)
-    samples_per_packet = (sample_rate / 100);
-#elif defined(OS_WIN)
-    if (sample_rate == 44100)
-      samples_per_packet = 448;
-    else
-      samples_per_packet = (sample_rate / 100);
-#else
-#error Unsupported platform
-#endif
+    const AudioParameters& params =
+        audio_manager_->GetInputStreamParameters(device_id);
     AudioInputStream* ais = audio_manager_->MakeAudioInputStream(
-        AudioParameters(format, channel_layout, sample_rate, bits_per_sample,
-                        samples_per_packet),
-        device_id);
+        params, device_id);
     EXPECT_TRUE(NULL != ais);
 
 #if defined(OS_LINUX) || defined(OS_OPENBSD)
     // Some linux devices do not support our settings, we may fail to open
     // those devices.
     if (!ais->Open()) {
       // Default device should always be able to be opened.
       EXPECT_TRUE(AudioManagerBase::kDefaultDeviceId != device_id);
       ais->Close();
       ais = NULL;
@@ skipping 75 matching lines @@
     // Restores the volume to the original value.
     ais->SetVolume(original_volume);
     current_volume = ais->GetVolume();
     EXPECT_EQ(original_volume, current_volume);
 
     ais->Close();
   }
 }
 
 }  // namespace media