ChromeOS: enable pinning stream output routing for webapp request [extracted from 2516813002]

media/audio/cras/cras_input.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 "media/audio/cras/cras_input.h"
 
 #include <math.h>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/time/time.h"
 #include "media/audio/audio_device_description.h"
-#include "media/audio/audio_manager.h"
 #include "media/audio/cras/audio_manager_cras.h"
 
 namespace media {
 
 CrasInputStream::CrasInputStream(const AudioParameters& params,
                                  AudioManagerCras* manager,
                                  const std::string& device_id)
     : audio_manager_(manager),
       bytes_per_frame_(0),
       callback_(NULL),
       client_(NULL),
       params_(params),
       started_(false),
       stream_id_(0),
       stream_direction_(CRAS_STREAM_INPUT),
       pin_device_(NO_DEVICE),
       is_loopback_(
           device_id == AudioDeviceDescription::kLoopbackInputDeviceId ||
           device_id == AudioDeviceDescription::kLoopbackWithMuteDeviceId),
       mute_system_audio_(device_id ==
                          AudioDeviceDescription::kLoopbackWithMuteDeviceId),
       mute_done_(false) {
   DCHECK(audio_manager_);
   audio_bus_ = AudioBus::Create(params_);
-  if (!IsDefault(device_id)) {
+  if (!audio_manager_->IsDefault(device_id, true)) {
     uint64_t cras_node_id;
     base::StringToUint64(device_id, &cras_node_id);
     pin_device_ = dev_index_of(cras_node_id);
   }
 }
 
 CrasInputStream::~CrasInputStream() {
   DCHECK(!client_);
 }
 
@@ skipping 298 matching lines @@
     return 0.0;
 
   long dB = cras_client_get_system_capture_gain(client_) / 100.0;
   return GetVolumeRatioFromDecibels(dB);
 }
 
 bool CrasInputStream::IsMuted() {
   return false;
 }
 
-bool CrasInputStream::IsDefault(const std::string& device_id) const {
-  AudioDeviceNames device_names;
-  audio_manager_->GetAudioInputDeviceNames(&device_names);
-  DCHECK(!device_names.empty());
-  AudioDeviceName device_name = device_names.front();
-  return device_name.unique_id == device_id;
-}
-
 double CrasInputStream::GetVolumeRatioFromDecibels(double dB) const {
   return pow(10, dB / 20.0);
 }
 
 double CrasInputStream::GetDecibelsFromVolumeRatio(double volume_ratio) const {
   return 20 * log10(volume_ratio);
 }
 
 }  // namespace media