Updating JSON Schema Compiler to add description field to schemas.

chrome/common/extensions/api/experimental_system_info_storage.idl

Index: chrome/common/extensions/api/experimental_system_info_storage.idl
diff --git a/chrome/common/extensions/api/experimental_system_info_storage.idl b/chrome/common/extensions/api/experimental_system_info_storage.idl
index d6d5002dfcc6a38f0c91ee6b271da30cf570c318..85ad8983ca1099def8e89b38125df0ee404331c8 100644
--- a/chrome/common/extensions/api/experimental_system_info_storage.idl
+++ b/chrome/common/extensions/api/experimental_system_info_storage.idl
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// Use the <code>chrome.experimental.systemInfo.storage</code> API to query
+// storage device information and be notified when it changes.
 namespace experimental.systemInfo.storage {
 
   enum StorageUnitType {
@@ -73,6 +75,6 @@ namespace experimental.systemInfo.storage {
     // Fired when a removable storage is detached from the system.
     static void onDetached(DOMString id);
   };
- 
+
 };