Rename PPB_Flash_DeviceID interface to PPB_Flash_DRM

ppapi/api/private/ppb_flash_device_id.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_DeviceID</code> interface.
  */
 
-[generate_thunk]
-
 label Chrome {
-  M21 = 1.0
+  M21 = 1.0,
+  M29 = 1.1
 };
 
+// TODO(raymes): This is deprecated by the PPB_Flash_DRM interface. Remove this
+// interface after a few versions of Chrome have passed.
 interface PPB_Flash_DeviceID {
   PP_Resource Create([in] PP_Instance instance);
 
   /**
    * Asynchronously computes the device ID. When available, it will place the
    * string in |*id| and will call the completion callback. On failure the
    * given var will be PP_VARTYPE_UNDEFINED.
    */
+  [version=1.0, deprecate=1.1]
   int32_t GetDeviceID([in] PP_Resource device_id,
                       [out] PP_Var id,
                       [in] PP_CompletionCallback callback);
 };