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

chrome/renderer/pepper_devices.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/pepper_devices.h"
 #include "chrome/renderer/webplugin_delegate_pepper.h"
 #include "skia/ext/platform_canvas.h"
 #include "webkit/glue/plugins/plugin_instance.h"
 #include "webkit/glue/webplugin.h"
 
@@ skipping 155 matching lines @@
       * (params.bits_per_sample >> 3);
 
   // TODO(neb): figure out if this number is grounded in reality
   params.buffer_capacity = params.packet_size * 3;
 
   LOG(INFO) << "Initializing Pepper Audio Context (" <<
       config->sampleFrameCount << "Hz, " << params.bits_per_sample <<
       " bits, " << config->outputChannelMap << "channels";
 
   stream_id_ = filter_->AddDelegate(this);
-  filter->Send(new ViewHostMsg_CreateAudioStream(0, stream_id_, params));
+  filter->Send(new ViewHostMsg_CreateAudioStream(0, stream_id_, params, true));
   return NPERR_NO_ERROR;
 }
 
 void AudioDeviceContext::OnDestroy() {
   // Make sure we don't call destroy more than once.
   DCHECK_NE(0, stream_id_);
   filter_->RemoveDelegate(stream_id_);
   filter_->Send(new ViewHostMsg_CloseAudioStream(0, stream_id_));
   stream_id_ = 0;
   if (audio_thread_.get()) {
@@ skipping 66 matching lines @@
 
 void AudioDeviceContext::Run() {
   int pending_data;
   while (sizeof(pending_data) == socket_->Receive(&pending_data,
                                                   sizeof(pending_data)) &&
       pending_data >= 0) {
     FireAudioCallback();
   }
 }