Fix in process PPAPI decryption.

ppapi/c/private/ppb_content_decryptor_private.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 private/ppb_content_decryptor_private.idl,
- *   modified Tue Dec  4 10:30:29 2012.
+ *   modified Mon Dec 10 13:46:33 2012.
  */
 
 #ifndef PPAPI_C_PRIVATE_PPB_CONTENT_DECRYPTOR_PRIVATE_H_
 #define PPAPI_C_PRIVATE_PPB_CONTENT_DECRYPTOR_PRIVATE_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_stdint.h"
@@ skipping 123 matching lines @@
   void (*KeyError)(PP_Instance instance,
                    struct PP_Var key_system,
                    struct PP_Var session_id,
                    int32_t media_error,
                    int32_t system_code);
   /**
    * 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.
    *
+   * The plugin must not hold a reference to the encrypted buffer resource
+   * provided to <code>Decrypt()</code> when it calls this method. The browser
+   * will reuse the buffer in a subsequent <code>Decrypt()</code> call.
+   *
    * @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] decrypted_block_info A <code>PP_DecryptedBlockInfo</code> that
    * contains the result code and tracking info associated with the
    * <code>decrypted_block</code>.
    */
   void (*DeliverBlock)(
       PP_Instance instance,
@@ skipping 47 matching lines @@
    * <code>ResetDecoder()</code>.
    */
   void (*DecoderResetDone)(PP_Instance instance,
                            PP_DecryptorStreamType decoder_type,
                            uint32_t request_id);
   /**
    * 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.
    *
+   * The plugin must not hold a reference to the encrypted buffer resource
+   * provided to <code>DecryptAndDecode()</code> when it calls this method. The
+   * browser will reuse the buffer in a subsequent
+   * <code>DecryptAndDecode()</code> call.
+   *
    * @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] decrypted_frame_info A <code>PP_DecryptedFrameInfo</code> that
    * contains the result code, tracking info, and buffer format associated with
    * <code>decrypted_frame</code>.
    */
   void (*DeliverFrame)(
       PP_Instance instance,
       PP_Resource decrypted_frame,
       const struct PP_DecryptedFrameInfo* decrypted_frame_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
+   * <code>PPP_ContentDecryptor_Private</code> interface completes to deliver
+   * a buffer of decrypted and decoded audio samples to the browser for
    * rendering.
    *
+   * The plugin must not hold a reference to the encrypted buffer resource
+   * provided to <code>DecryptAndDecode()</code> when it calls this method. The
+   * browser will reuse the buffer in a subsequent
+   * <code>DecryptAndDecode()</code> call.
+   *
    * <code>audio_frames</code> can contain multiple audio output buffers. Each
    * buffer is serialized in this format:
    *
    * |<------------------- serialized audio buffer ------------------->|
    * | int64_t timestamp | int64_t length | length bytes of audio data |
    *
    * For example, with three audio output buffers, |audio_frames| will look
    * like this:
    *
    * |<---------------- audio_frames ------------------>|
@@ skipping 13 matching lines @@
       const struct PP_DecryptedBlockInfo* decrypted_block_info);
 };
 
 typedef struct PPB_ContentDecryptor_Private_0_6 PPB_ContentDecryptor_Private;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PRIVATE_PPB_CONTENT_DECRYPTOR_PRIVATE_H_ */