Support configuring number of audio buffers in MediaStream Pepper API.

ppapi/cpp/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.
 
 #ifndef PPAPI_CPP_MEDIA_STREAM_AUDIO_TRACK_H_
 #define PPAPI_CPP_MEDIA_STREAM_AUDIO_TRACK_H_
 
 #include <string>
 
 #include "ppapi/c/ppb_media_stream_audio_track.h"
@@ skipping 38 matching lines @@
 
   ~MediaStreamAudioTrack();
 
   /// Configures underlying buffer 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 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.Configure(attribs, callback);
   /// @endcode
   ///
   /// @param[in] attrib_list A list of attribute name-value pairs in which each
@@ skipping 64 matching lines @@
   ///
   /// @param[in] resource A <code>Resource</code> to test.
   ///
   /// @return True if <code>resource</code> is a MediaStream audio track.
   static bool IsMediaStreamAudioTrack(const Resource& resource);
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_MEDIA_STREAM_AUDIO_TRACK_H_