Add an asynchronous version of the Flash DeviceID API.

ppapi/api/private/ppb_flash.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 contains the <code>PPB_Flash</code> interface.
  */
 
 label Chrome {
@@ skipping 152 matching lines @@
   /**
    * Indicates that there's activity and, e.g., the screensaver shouldn't kick
    * in.
    */
   [version=12.1]
   void UpdateActivity(
       [in] PP_Instance instance);
 
   /**
    * Returns the device ID as a string. Returns a PP_VARTYPE_UNDEFINED on error.
+   * Deprecated, use GetDeviceIDAsync.
    */
   [version=12.2]
   PP_Var GetDeviceID([in] PP_Instance instance);
 
   /**
    * Deprecated. See GetSetting().
    */
   [version=12.3]
-  int32_t GetSettingInt(PP_Instance instance, PP_FlashSetting setting);
+  int32_t GetSettingInt([in] PP_Instance instance,
+                        [in] PP_FlashSetting setting);
 
   /**
    * Returns the value associated with the given setting. Invalid enums will
    * result in an undefined PP_Var return value.
    */
   [version=12.4]
   PP_Var GetSetting(PP_Instance instance, PP_FlashSetting setting);
 };