melt the non-dev audio interface to 0.5

ppapi/c/ppb_audio_config.h

 /* Copyright (c) 2011 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.
  */
 #ifndef PPAPI_C_PPB_AUDIO_CONFIG_H_
 #define PPAPI_C_PPB_AUDIO_CONFIG_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_stdint.h"
 
-#define PPB_AUDIO_CONFIG_INTERFACE "PPB_AudioConfig;1.0"
+#define PPB_AUDIO_CONFIG_INTERFACE "PPB_AudioConfig;0.5"
 
 enum {
   PP_AUDIOMINSAMPLEFRAMECOUNT = 64,
   PP_AUDIOMAXSAMPLEFRAMECOUNT = 32768
 };
 
 typedef enum {
   PP_AUDIOSAMPLERATE_NONE = 0,
   PP_AUDIOSAMPLERATE_44100 = 44100,
   PP_AUDIOSAMPLERATE_48000 = 48000
@@ skipping 64 matching lines @@
   /**
    * Returns the sample frame count for the given AudioConfig resource. If the
    * resource is invalid, this will return 0. See RecommendSampleFrameCount for
    * more on sample frame counts.
    */
   uint32_t (*GetSampleFrameCount)(PP_Resource config);
 };
 
 #endif  /* PPAPI_C_PPB_AUDIO_CONFIG_H_ */