Add Query() support to FileRef

ppapi/api/ppb_file_ref.idl

 /* 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.
  */
 
 /**
  * This file defines the API to create a file reference or "weak pointer" to a
  * file in a file system.
  */
 
 label Chrome {
-  M14 = 1.0
+  M14 = 1.0,
+  M28 = 1.1
 };
 
 /**
  * The <code>PPB_FileRef</code> struct represents a "weak pointer" to a file in
  * a file system.  This struct contains a <code>PP_FileSystemType</code>
  * identifier and a file path string.
  */
 interface PPB_FileRef {
   /**
    * Create() creates a weak pointer to a file in the given file system. File
@@ skipping 136 matching lines @@
    * @param[in] new_file_ref A <code>PP_Resource</code> corresponding to a new
    * file reference.
    * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon
    * completion of Rename().
    *
    * @return An int32_t containing an error code from <code>pp_errors.h</code>.
    */
   int32_t Rename([in] PP_Resource file_ref,
                  [in] PP_Resource new_file_ref,
                  [in] PP_CompletionCallback callback);
+
+  /*
+   * Query() queries info about a file or directory. You must have access to
+   * read this file or directory if it exists in the external filesystem.
+   *
+   * @param[in] file_ref A <code>PP_Resource</code> corresponding to a file
+   * reference.
+   * @param[out] info A pointer to a <code>PP_FileInfo</code> which will be
+   * populated with information about the file or directory.
+   * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon
+   * completion of Query().
+   *
+   * @return An int32_t containing an error code from <code>pp_errors.h</code>.
+   */
+  [version=1.1]
+  int32_t Query([in] PP_Resource file_ref,
+                [out] PP_FileInfo info,
+                [in] PP_CompletionCallback callback);
 };