Support configuring number of audio buffers in MediaStream Pepper API.

ppapi/c/ppb_media_stream_audio_track.h

 /* Copyright 2014 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.
  */
 
-/* From ppb_media_stream_audio_track.idl modified Fri Mar 28 10:13:34 2014. */
+/* From ppb_media_stream_audio_track.idl modified Wed May 28 09:36:15 2014. */
 
 #ifndef PPAPI_C_PPB_MEDIA_STREAM_AUDIO_TRACK_H_
 #define PPAPI_C_PPB_MEDIA_STREAM_AUDIO_TRACK_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_stdint.h"
 #include "ppapi/c/pp_var.h"
@@ skipping 74 matching lines @@
    */
   PP_Bool (*IsMediaStreamAudioTrack)(PP_Resource resource);
   /**
    * Configures underlying buffers for incoming audio samples.
    * If the application doesn't want to drop samples, then the
    * <code>PP_MEDIASTREAMAUDIOTRACK_ATTRIB_BUFFERS</code> should be
    * chosen such that inter-buffer processing time variability won't overrun all
    * the input buffers. If all buffers are filled, then samples will be
    * dropped. The application can detect this by examining the timestamp on
    * returned buffers. If <code>Configure()</code> is not called, default
-   * settings will be used.
+   * settings will be used. Calls to Configure while the plugin holds
+   * buffers will fail.
    * Example usage from plugin code:
    * @code
    * int32_t attribs[] = {
    *     PP_MEDIASTREAMAUDIOTRACK_ATTRIB_BUFFERS, 4,
    *     PP_MEDIASTREAMAUDIOTRACK_ATTRIB_DURATION, 10,
    *     PP_MEDIASTREAMAUDIOTRACK_ATTRIB_NONE};
    * track_if->Configure(track, attribs, callback);
    * @endcode
    *
    * @param[in] audio_track A <code>PP_Resource</code> corresponding to an audio
@@ skipping 93 matching lines @@
   void (*Close)(PP_Resource audio_track);
 };
 
 typedef struct PPB_MediaStreamAudioTrack_0_1 PPB_MediaStreamAudioTrack;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PPB_MEDIA_STREAM_AUDIO_TRACK_H_ */