Log audio system used to WebRTC log.

media/audio/mac/audio_manager_mac.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/mac/audio_manager_mac.h"
 
 #include <algorithm>
 #include <limits>
 #include <vector>
 
@@ skipping 22 matching lines @@
 // Maximum number of output streams that can be open simultaneously.
 static const int kMaxOutputStreams = 50;
 
 // Define bounds for for low-latency input and output streams.
 static const int kMinimumInputOutputBufferSize = 128;
 static const int kMaximumInputOutputBufferSize = 4096;
 
 // Default sample-rate on most Apple hardware.
 static const int kFallbackSampleRate = 44100;
 
+const char kAudioManagerName[] = "Mac";
+
 // Helper method to construct AudioObjectPropertyAddress structure given
 // property selector and scope. The property element is always set to
 // kAudioObjectPropertyElementMaster.
 static AudioObjectPropertyAddress GetAudioObjectPropertyAddress(
     AudioObjectPropertySelector selector,
     bool is_input) {
   AudioObjectPropertyScope scope = is_input ? kAudioObjectPropertyScopeInput
                                             : kAudioObjectPropertyScopeOutput;
   AudioObjectPropertyAddress property_address = {
       selector, scope, kAudioObjectPropertyElementMaster};
@@ skipping 543 matching lines @@
            associated_devices.begin();
        iter != associated_devices.end(); ++iter) {
     if (default_device == *iter)
       return *iter;
   }
 
   // Failed to figure out which is the matching device, return an empty string.
   return std::string();
 }
 
+const char* AudioManagerMac::GetName() {
+  return kAudioManagerName;
+}
+
 AudioOutputStream* AudioManagerMac::MakeLinearOutputStream(
     const AudioParameters& params,
     const LogCallback& log_callback) {
   DCHECK(GetTaskRunner()->BelongsToCurrentThread());
   return MakeLowLatencyOutputStream(params, std::string(), log_callback);
 }
 
 AudioOutputStream* AudioManagerMac::MakeLowLatencyOutputStream(
     const AudioParameters& params,
     const std::string& device_id,
@@ skipping 464 matching lines @@
 ScopedAudioManagerPtr CreateAudioManager(
     scoped_refptr<base::SingleThreadTaskRunner> task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner,
     AudioLogFactory* audio_log_factory) {
   return ScopedAudioManagerPtr(
       new AudioManagerMac(std::move(task_runner), std::move(worker_task_runner),
                           audio_log_factory));
 }
 
 }  // namespace media