Log audio system used to WebRTC log.

chrome/browser/media/webrtc/webrtc_text_log_handler.cc

 // Copyright 2016 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 "chrome/browser/media/webrtc/webrtc_text_log_handler.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/cpu.h"
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/sys_info.h"
 #include "base/time/time.h"
 #include "chrome/browser/media/webrtc/webrtc_log_uploader.h"
 #include "chrome/common/channel_info.h"
 #include "chrome/common/media/webrtc_logging_messages.h"
 #include "components/version_info/version_info.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/gpu_data_manager.h"
 #include "content/public/browser/render_process_host.h"
 #include "gpu/config/gpu_info.h"
+#include "media/audio/audio_manager.h"
 #include "net/base/ip_address.h"
 #include "net/base/network_change_notifier.h"
 #include "net/base/network_interfaces.h"
 
 #if defined(OS_LINUX)
 #include "base/linux_util.h"
 #endif
 
 #if defined(OS_MACOSX)
 #include "base/mac/mac_util.h"
@@ skipping 430 matching lines @@
       "Gpu: machine-model-name=" + gpu_info.machine_model_name +
       ", machine-model-version=" + gpu_info.machine_model_version +
       ", vendor-id=" + base::UintToString(gpu_info.gpu.vendor_id) +
       ", device-id=" + base::UintToString(gpu_info.gpu.device_id) +
       ", driver-vendor=" + gpu_info.driver_vendor + ", driver-version=" +
       gpu_info.driver_version);
   LogToCircularBuffer("OpenGL: gl-vendor=" + gpu_info.gl_vendor +
                       ", gl-renderer=" + gpu_info.gl_renderer +
                       ", gl-version=" + gpu_info.gl_version);
 
+  // Audio manager
+  // On some platforms, this can vary depending on build flags and failure
+  // fallbacks. On Linux for example, we fallback on ALSA if PulseAudio fails to
+  // initialize.
+  LogToCircularBuffer(base::StringPrintf(
+      "Audio manager: %s", media::AudioManager::Get()->GetName()));
+
   // Network interfaces
   LogToCircularBuffer("Discovered " + base::SizeTToString(network_list.size()) +
                       " network interfaces:");
   for (const auto& network : network_list) {
     LogToCircularBuffer(
         "Name: " + network.friendly_name + ", Address: " +
         IPAddressToSensitiveString(network.address) + ", Type: " +
         net::NetworkChangeNotifier::ConnectionTypeToString(network.type));
   }
 
@@ skipping 10 matching lines @@
   }
 }
 
 void WebRtcTextLogHandler::DisableBrowserProcessLoggingOnUIThread() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   content::RenderProcessHost* host =
       content::RenderProcessHost::FromID(render_process_id_);
   if (host)
     host->ClearWebRtcLogMessageCallback();
 }