Require a user gesture to display the PPAPI file chooser

ppapi/c/pp_errors.h

 /* 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.
  */
 
-/* From pp_errors.idl modified Thu Jan  5 10:52:49 2012. */
+/* From pp_errors.idl modified Tue Mar 13 17:32:37 2012. */
 
 #ifndef PPAPI_C_PP_ERRORS_H_
 #define PPAPI_C_PP_ERRORS_H_
 
 #include "ppapi/c/pp_macros.h"
 
 /**
  * @file
  * This file defines an enumeration of all PPAPI error codes.
  */
@@ skipping 87 matching lines @@
    */
   PP_ERROR_FILECHANGED = -23,
   /** This value indicates failure due to a time limit being exceeded. */
   PP_ERROR_TIMEDOUT = -30,
   /**
    * This value indicates that the user cancelled rather than providing
    * expected input.
    */
   PP_ERROR_USERCANCEL = -40,
   /**
+   * This value indicates failure due to lack of a user gesture such as a
+   * mouse click or key input event. Examples of actions requiring a user
+   * gesture are showing the file chooser dialog and going into fullscreen
+   * mode.
+   */
+  PP_ERROR_NO_USER_GESTURE = -41,
+  /**
    * This value indicates that the graphics context was lost due to a
    * power management event.
    */
   PP_ERROR_CONTEXT_LOST = -50,
   /**
    * Indicates an attempt to make a PPAPI call on a thread without previously
    * registering a message loop via PPB_MessageLoop.AttachToCurrentThread.
    * Without this registration step, no PPAPI calls are supported.
    */
   PP_ERROR_NO_MESSAGE_LOOP = -51,
   /**
    * Indicates that the requested operation is not permitted on the current
    * thread.
    */
   PP_ERROR_WRONG_THREAD = -52
 };
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PP_ERRORS_H_ */