Refactor AudioParameters member setting.

content/renderer/media/webrtc_local_audio_source_provider.cc

Index: content/renderer/media/webrtc_local_audio_source_provider.cc
diff --git a/content/renderer/media/webrtc_local_audio_source_provider.cc b/content/renderer/media/webrtc_local_audio_source_provider.cc
index a84151b10d420ff79d6672ae0451411cc6d24b58..b6ec56eff0cdd62c80e3d9ae39d258f9aad38648 100644
--- a/content/renderer/media/webrtc_local_audio_source_provider.cc
+++ b/content/renderer/media/webrtc_local_audio_source_provider.cc
@@ -34,10 +34,9 @@ WebRtcLocalAudioSourceProvider::WebRtcLocalAudioSourceProvider(
     media::AudioHardwareConfig* hardware_config =
         RenderThreadImpl::current()->GetAudioHardwareConfig();
     int sample_rate = hardware_config->GetOutputSampleRate();
-    sink_params_.Reset(
-        media::AudioParameters::AUDIO_PCM_LOW_LATENCY,
-        media::CHANNEL_LAYOUT_STEREO, 2, sample_rate, 16,
-        kWebAudioRenderBufferSize);
+    sink_params_.Reset(media::AudioParameters::AUDIO_PCM_LOW_LATENCY,
+                       media::CHANNEL_LAYOUT_STEREO, sample_rate, 16,
+                       kWebAudioRenderBufferSize);
   }
 
   // Connect the source provider to the track as a sink.