Make AudioParameters a class instead of a struct

content/renderer/media/audio_hardware.h

Index: content/renderer/media/audio_hardware.h
diff --git a/content/renderer/media/audio_hardware.h b/content/renderer/media/audio_hardware.h
index 5a9f85a0d2c880c97474d3f0a3d5bd007d0bcba2..36fea0f2c17e9b1a6590451f0ce03dd2040e8d01 100644
--- a/content/renderer/media/audio_hardware.h
+++ b/content/renderer/media/audio_hardware.h
@@ -8,6 +8,7 @@
 
 #include "base/basictypes.h"
 #include "content/common/content_export.h"
+#include "media/base/channel_layout.h"
 
 // Contains static methods to query hardware properties from the browser
 // process. Values are cached to avoid unnecessary round trips, but the cache
@@ -33,7 +34,7 @@ CONTENT_EXPORT size_t GetHighLatencyOutputBufferSize(int sample_rate);
 
 // Fetch the number of audio channels for the default input device.
 // Must be called from RenderThreadImpl::current().

[scherkus (not reviewing), 2012/03/09 21:48:59]

update docs

[vrk (LEFT CHROMIUM), 2012/03/16 18:30:41]

Done.

-CONTENT_EXPORT uint32 GetInputChannelCount();
+CONTENT_EXPORT ChannelLayout GetInputChannelLayout();
 
 // Forces the next call to any of the Get functions to query the hardware
 // and repopulate the cache.