Add content decryptor related structs and update PP{P|B}_ContentDecryptor_Private.

ppapi/api/private/ppb_content_decryptor_private.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 <code>PPB_ContentDecryptor_Private</code>
  * interface. Note: This is a special interface, only to be used for Content
  * Decryption Modules, not normal plugins.
  */
@@ skipping 118 matching lines @@
 
   /**
    * Called after the <code>Decrypt()</code> method on the
    * <code>PPP_ContentDecryptor_Private</code> interface completes to
    * deliver decrypted_block to the browser for decoding and rendering.
    *
    * @param[in] decrypted_block A <code>PP_Resource</code> corresponding to a
    * <code>PPB_Buffer_Dev</code> resource that contains a decrypted data
    * block.
    *
-   * @param[in] request_id A unique value the browser can use to associate
-   * decrypted_block with a decrypt call.
+   * @param[in] tracking_info Tracking info the browser can use to associate
+   * decrypted_block with a decrypt call and/or an input (encrypted) buffer.
    */
   void DeliverBlock(
       [in] PP_Instance instance,
       [in] PP_Resource decrypted_block,
-      [in] int32_t request_id);
+      [in] PP_DecryptTrackingInfo tracking_info);
 
   /**
    * Called after the <code>DecryptAndDecode()</code> method on the
    * <code>PPP_ContentDecryptor_Private</code> interface completes to deliver
    * a decrypted and decoded video frame to the browser for rendering.
    *
    * @param[in] decrypted_frame A <code>PP_Resource</code> corresponding to a
    * <code>PPB_Buffer_Dev</code> resource that contains a video frame.
    *
-   * @param[in] request_id A unique value the browser can use to associate
-   * decrypted_frame with a decrypt call.
+   * @param[in] tracking_info Tracking info the browser can use to associate
+   * decrypted_block with a decrypt call and/or an input (encrypted) buffer.
    */
   void DeliverFrame(
       [in] PP_Instance instance,
       [in] PP_Resource decrypted_frame,
-      [in] int32_t request_id);
+      [in] PP_DecryptTrackingInfo tracking_info);
 
   /**
    * Called after the <code>DecryptAndDecode()</code> method on the
    * <code>PPP_ContentDecryptor_Private</code> interface completes to
    * deliver a buffer of decrypted and decoded audio samples to the browser for
    * rendering.
    *
    * @param[in] decrypted_samples A <code>PP_Resource</code> corresponding to a
    * <code>PPB_Buffer_Dev</code> resource that contains a decrypted buffer
    * of decoded audio samples.
    *
-   * @param[in] request_id A unique value the browser can use to associate
-   * decrypted_samples with a decrypt call.
+   * @param[in] tracking_info Tracking info the browser can use to associate
+   * decrypted_block with a decrypt call and/or an input (encrypted) buffer.
    */
   void DeliverSamples(
       [in] PP_Instance instance,
       [in] PP_Resource decrypted_samples,
-      [in] int32_t request_id);
+      [in] PP_DecryptTrackingInfo tracking_info);
 };