Pass more detailed audio hardware configuration information to the renderer

content/renderer/render_thread_impl.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/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <vector>
@@ skipping 898 matching lines @@
   if (!audio_renderer_mixer_manager_.get()) {
     audio_renderer_mixer_manager_.reset(new AudioRendererMixerManager(
         GetAudioHardwareConfig()));
   }
 
   return audio_renderer_mixer_manager_.get();
 }
 
 media::AudioHardwareConfig* RenderThreadImpl::GetAudioHardwareConfig() {
   if (!audio_hardware_config_) {
-    int output_buffer_size;
-    int output_sample_rate;
-    int input_sample_rate;
-    media::ChannelLayout input_channel_layout;
-
+    media::AudioParameters input_params;
+    media::AudioParameters output_params;
     Send(new ViewHostMsg_GetAudioHardwareConfig(
-        &output_buffer_size, &output_sample_rate,
-        &input_sample_rate, &input_channel_layout));
+        &input_params, &output_params));
 
     audio_hardware_config_.reset(new media::AudioHardwareConfig(
-        output_buffer_size, output_sample_rate, input_sample_rate,
-        input_channel_layout));
+        input_params, output_params));
     audio_message_filter_->SetAudioHardwareConfig(audio_hardware_config_.get());
   }
 
   return audio_hardware_config_.get();
 }
 
 #if defined(OS_WIN)
 void RenderThreadImpl::PreCacheFontCharacters(const LOGFONT& log_font,
                                               const string16& str) {
   Send(new ViewHostMsg_PreCacheFontCharacters(log_font, str));
@@ skipping 260 matching lines @@
 
 void RenderThreadImpl::SetFlingCurveParameters(
     const std::vector<float>& new_touchpad,
     const std::vector<float>& new_touchscreen) {
   webkit_platform_support_->SetFlingCurveParameters(new_touchpad,
                                                     new_touchscreen);
 
 }
 
 }  // namespace content