Add a virtual beamforming audio device on ChromeOS.

media/audio/pulse/audio_manager_pulse.cc

Index: media/audio/pulse/audio_manager_pulse.cc
diff --git a/media/audio/pulse/audio_manager_pulse.cc b/media/audio/pulse/audio_manager_pulse.cc
index c752a9e28bd76faca89ad5e8a4ffc1e73b54fadb..f3d8832635b196a370aff6792b059a4d1e3d99ff 100644
--- a/media/audio/pulse/audio_manager_pulse.cc
+++ b/media/audio/pulse/audio_manager_pulse.cc
@@ -135,9 +135,9 @@ AudioParameters AudioManagerPulse::GetInputStreamParameters(
       user_buffer_size : kDefaultInputBufferSize;
 
   // TODO(xians): add support for querying native channel layout for pulse.
-  return AudioParameters(
-      AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_STEREO,
-      GetNativeSampleRate(), 16, buffer_size);
+  return AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY,
+                         CHANNEL_LAYOUT_STEREO, GetNativeSampleRate(), 16,
+                         buffer_size);
 }
 
 AudioOutputStream* AudioManagerPulse::MakeLinearOutputStream(
@@ -189,9 +189,8 @@ AudioParameters AudioManagerPulse::GetPreferredOutputStreamParameters(
   if (user_buffer_size)
     buffer_size = user_buffer_size;
 
-  return AudioParameters(
-      AudioParameters::AUDIO_PCM_LOW_LATENCY, channel_layout,
-      sample_rate, bits_per_sample, buffer_size, AudioParameters::NO_EFFECTS);
+  return AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, channel_layout,
+                         sample_rate, bits_per_sample, buffer_size);
 }
 
 AudioOutputStream* AudioManagerPulse::MakeOutputStream(