Remove "high"-latency audio code path

content/renderer/media/audio_device.cc

Index: content/renderer/media/audio_device.cc
diff --git a/content/renderer/media/audio_device.cc b/content/renderer/media/audio_device.cc
index 53ee88dd9497cd7dff6dff8e860ec36d04c0f44f..75377940102f0ec7e1ab1ad8aa73c2517ac0b2de 100644
--- a/content/renderer/media/audio_device.cc
+++ b/content/renderer/media/audio_device.cc
@@ -151,7 +151,7 @@ void AudioDevice::InitializeOnIOThread(const AudioParameters& params) {
     return;
 
   stream_id_ = filter_->AddDelegate(this);
-  Send(new AudioHostMsg_CreateStream(stream_id_, params, true));
+  Send(new AudioHostMsg_CreateStream(stream_id_, params));
 }
 
 void AudioDevice::PlayOnIOThread() {
@@ -207,11 +207,6 @@ void AudioDevice::OnStateChanged(AudioStreamState state) {
   }
 }
 
-void AudioDevice::OnCreated(
-    base::SharedMemoryHandle handle, uint32 length) {
-  // Not needed in this simple implementation.
-}
-
 void AudioDevice::OnLowLatencyCreated(
     base::SharedMemoryHandle handle,
     base::SyncSocket::Handle socket_handle,