Add a new parameter |latency| to PPB_Audio.

content/renderer/pepper/pepper_platform_audio_output.cc

 // Copyright (c) 2012 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 "content/renderer/pepper/pepper_platform_audio_output.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "build/build_config.h"
 #include "content/child/child_process.h"
 #include "content/common/media/audio_messages.h"
 #include "content/renderer/media/audio_message_filter.h"
 #include "content/renderer/pepper/audio_helper.h"
 #include "content/renderer/render_thread_impl.h"
 #include "media/base/audio_hardware_config.h"
+#include "ppapi/shared_impl/ppb_audio_config_shared.h"
 
 namespace content {
 
 // static
 PepperPlatformAudioOutput* PepperPlatformAudioOutput::Create(
     int sample_rate,
     int frames_per_buffer,
     int source_render_view_id,
     AudioHelper* client) {
   scoped_refptr<PepperPlatformAudioOutput> audio_output(
@@ skipping 92 matching lines @@
   DCHECK(client);
   client_ = client;
 
   RenderThreadImpl* const render_thread = RenderThreadImpl::current();
   ipc_ = render_thread->audio_message_filter()->
       CreateAudioOutputIPC(source_render_view_id);
   CHECK(ipc_);
 
   media::AudioParameters params(
       media::AudioParameters::AUDIO_PCM_LOW_LATENCY,
-      media::CHANNEL_LAYOUT_STEREO, sample_rate, 16, frames_per_buffer);
+      media::CHANNEL_LAYOUT_STEREO, sample_rate,
+      ppapi::kBitsPerAudioOutputSample, frames_per_buffer);
 
   io_message_loop_proxy_->PostTask(
       FROM_HERE,
       base::Bind(&PepperPlatformAudioOutput::InitializeOnIOThread, this,
                  params));
   return true;
 }
 
 void PepperPlatformAudioOutput::InitializeOnIOThread(
     const media::AudioParameters& params) {
@@ skipping 23 matching lines @@
     return;
 
   ipc_->CloseStream();
   ipc_.reset();
 
   Release();  // Release for the delegate, balances out the reference taken in
               // PepperHelperImpl::CreateAudio.
 }
 
 }  // namespace content