Use larger buffer sizes for lower power on Linux.

media/filters/audio_renderer_impl.cc

Index: media/filters/audio_renderer_impl.cc
diff --git a/media/filters/audio_renderer_impl.cc b/media/filters/audio_renderer_impl.cc
index acb43f7dfd80c975e30b02ac890896215acff9f3..bb279e9156e1ddbd6ffeb753f816582442e6ec73 100644
--- a/media/filters/audio_renderer_impl.cc
+++ b/media/filters/audio_renderer_impl.cc
@@ -278,7 +278,14 @@ void AudioRendererImpl::Initialize(DemuxerStream* stream,
     buffer_converter_.reset();
   } else {
     // TODO(rileya): Support hardware config changes
-    audio_parameters_ = hardware_config_->GetOutputConfig();
+    const AudioParameters& hw_params = hardware_config_->GetOutputConfig();

[no longer working on chromium, 2014/04/14 08:51:50]

why not add a GetHighLatencyConfigue() method to hardware config?

[DaleCurtis, 2014/04/16 00:39:46]

I wanted it to be clear that this is only adjusting the buffer size and no other
parameters.

+    audio_parameters_.Reset(hw_params.format(),
+                            hw_params.channel_layout(),
+                            hw_params.channels(),
+                            hw_params.input_channels(),
+                            hw_params.sample_rate(),
+                            hw_params.bits_per_sample(),
+                            hardware_config_->GetHighLatencyBufferSize());
   }
 
   audio_buffer_stream_.Initialize(