Add a parameter to CreateAudioStream to choose between standard and low-latency mode.

chrome/renderer/media/audio_renderer_impl.cc

 // Copyright (c) 2010 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/renderer/media/audio_renderer_impl.h"
 
 #include <math.h>
 
 #include "chrome/common/render_messages.h"
 #include "chrome/renderer/audio_message_filter.h"
@@ skipping 235 matching lines @@
   io_loop_->AddDestructionObserver(this);
 
   ViewHostMsg_Audio_CreateStream_Params params;
   params.format = format;
   params.channels = channels;
   params.sample_rate = sample_rate;
   params.bits_per_sample = bits_per_sample;
   params.packet_size = packet_size;
   params.buffer_capacity = buffer_capacity;
 
-  filter_->Send(new ViewHostMsg_CreateAudioStream(0, stream_id_, params));
+  filter_->Send(new ViewHostMsg_CreateAudioStream(0, stream_id_, params,
+                                                  false));
 }
 
 void AudioRendererImpl::OnPlay() {
   DCHECK(MessageLoop::current() == io_loop_);
 
   filter_->Send(new ViewHostMsg_PlayAudioStream(0, stream_id_));
 }
 
 void AudioRendererImpl::OnPause() {
   DCHECK(MessageLoop::current() == io_loop_);
@@ skipping 83 matching lines @@
           prerolling_ = false;
           preroll_bytes_ = 0;
           filter_->Send(new ViewHostMsg_PlayAudioStream(0, stream_id_));
         } else {
           preroll_bytes_ -= filled;
         }
       }
     }
   }
 }