Added option to bookmarkManagerPrivate.getMetaInfo() to get meta info from all bookmarks in a one f…

chrome/common/extensions/api/bookmark_manager_private.json

 // Copyright (c) 2012 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.
 
 [
   {
     "namespace": "bookmarkManagerPrivate",
     "description": "none",
     "types": [
       {
@@ skipping 251 matching lines @@
                 "$ref": "bookmarks.BookmarkTreeNode"
               }
             ]
           }
         ]
       },
       {
         "name": "getMetaInfo",
         "type": "function",
         "description": "Gets meta info from a bookmark node",
+        "allowAmbiguousOptionalArguments": true,
         "parameters": [
           {
             "name": "id",
-            "description": "The id of the bookmark to retrieve meta info from",
+            "description": "The id of the bookmark to retrieve meta info from. If omitted meta info for all nodes is returned.",
+            "optional": true,
             "type": "string"
           },
           {
             "name": "key",
             "description": "The key for the meta info to retrieve. If omitted, all fields are returned",
             "optional": true,
             "type": "string"
           },
           {
             "type": "function",
             "name": "callback",
             "parameters": [
               {
                 "name": "value",
-                "description": "If a key was given, the value of the specified field, if present. Otherwise an object containing all meta info fields for the node.",
+                "description": "If a key was given, the value of the specified field, if present. Otherwise an object containing all meta info fields for the node. If id is not given then meta info for all nodes as an object with node id to meta info.",
                 "optional": true,
-                // TODO(rfevang): Convert this to always return MetaInfoFields
-                // if the API is made public.
                 "choices": [
                   {"type": "string"},
-                  {"$ref": "MetaInfoFields"}
+                  {"type": "object", "additionalProperties": {"type": "any"}}
                 ]
               }
             ]
           }
         ]
       },
       {
         "name": "setMetaInfo",
         "type": "function",
         "description": "Sets a meta info value for a bookmark node",
@@ skipping 129 matching lines @@
         "type": "function",
         "description": "Fired when the meta info of a node changes.",
         "parameters": [
           {"name": "id", "type": "string"},
           {"name": "metaInfoChanges", "$ref": "MetaInfoFields"}
         ]
       }
     ]
   }
 ]