Changed "Pepper Audio API Code Walkthrough" to "Pepper Audio API" as per Andy.

ppapi/api/ppb_audio_config.idl

 /* 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.
  */
 
 /**
  * This file defines the PPB_AudioConfig interface for establishing an
  * audio configuration resource within the browser.
  */
 
@@ skipping 28 matching lines @@
 } ;
 
 
 /**
  * The <code>PPB_AudioConfig</code> interface contains pointers to several
  * functions for establishing your audio configuration within the browser.
  * This interface only supports stereo * 16bit output.
  *
  * Refer to the
  * <a href="/chrome/nativeclient/docs/audio.html">Pepper
- * Audio API Code Walkthrough</a> for information on using this interface.
+ * Audio API</a> for information on using this interface.
  */
 [macro="PPB_AUDIO_CONFIG_INTERFACE"]
 interface PPB_AudioConfig {
   /**
    * CreateStereo16bit() creates a 16 bit audio configuration resource. The
    * <code>sample_frame_count</code> should be the result of calling
    * <code>RecommendSampleFrameCount</code>. If the sample frame count or bit
    * rate isn't supported, this function will fail and return a null resource.
    *
    * A single sample frame on a stereo device means one value for the left
@@ skipping 86 matching lines @@
    * @param[in] config A <code>PP_Resource</code> containing the audio config
    * resource.
    * @return A <code>uint32_t</code> containing sample frame count or
    * 0 if the resource is invalid. See <code>RecommendSampleFrameCount</code>
    * for more on sample frame counts.
    */
   uint32_t GetSampleFrameCount(
       [in] PP_Resource config);
 };