Updating JSON Schema Compiler to add description field to schemas.

chrome/common/extensions/api/audio.idl

 // Copyright (c) 2013 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.
 
+// Use the <code>chrome.audio</code> API to query audio device configuration and
+// be notified when it changes.
 namespace audio {
 
   dictionary OutputDeviceInfo {
     // The unique identifier of the audio output device.
     DOMString id;
     // The user-friendly name (e.g. "Bose Amplifier").
     DOMString name;
     // True if this is the current active device.
     boolean isActive;
     // True if this is muted.
@@ skipping 45 matching lines @@
                               SetPropertiesCallback callback);
   };
 
   interface Events {
     // Fired when anything changes to the audio device configuration.
     // TODO(hshi): as suggested by mpcomplete this should pass down the same
     // data as GetInfoCallback. Implement this once we have getInfo working.
     static void onDeviceChanged();
   };
 };