Revert 187936 "Pass more detailed audio hardware configuration i..."

media/base/audio_converter.cc

Index: media/base/audio_converter.cc
===================================================================
--- media/base/audio_converter.cc	(revision 189875)
+++ media/base/audio_converter.cc	(working copy)
@@ -30,7 +30,8 @@
              << " to " << output_params.channel_layout() << "; from "
              << input_params.channels() << " channels to "
              << output_params.channels() << " channels.";
-    channel_mixer_.reset(new ChannelMixer(input_params, output_params));
+    channel_mixer_.reset(new ChannelMixer(
+        input_params.channel_layout(), output_params.channel_layout()));
 
     // Pare off data as early as we can for efficiency.
     downmix_early_ = input_params.channels() > output_params.channels();