Teach BindToLoop to create callbacks that accept scoped parameters.

content/common/gpu/media/vaapi_h264_decoder.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.
 //
 // This file contains an implementation of a class that provides H264 decode
 // support for use with VAAPI hardware video decode acceleration on Intel
 // systems.
 
 #ifndef CONTENT_COMMON_GPU_MEDIA_VAAPI_H264_DECODER_H_
 #define CONTENT_COMMON_GPU_MEDIA_VAAPI_H264_DECODER_H_
@@ skipping 32 matching lines @@
 // be the same as the one on which Decode*() functions are called.
 class VaapiH264Decoder {
  public:
   // Callback invoked on the client when a picture is to be displayed.
   // Arguments: input buffer id, output buffer id (both provided by the client
   // at the time of Decode() and AssignPictureBuffer() calls).
   typedef base::Callback<void(int32, int32)> OutputPicCB;
 
   // Callback invoked on the client to start a GPU job to decode and render
   // a video frame into a pixmap/texture. Callee has to call SubmitDecode()
-  // for the given picture, taking ownership of the queues.
+  // for the given picture.
   // Arguments: output buffer id (provided by the client at the time of
   // AssignPictureBuffer() call), va buffer and slice buffer queues to be
-  // passed to SubmitDecode(). SubmitDecode() will take ownership of the
-  // queues.
-  typedef base::Callback<void(int32,
-                              std::queue<VABufferID>*,
-                              std::queue<VABufferID>*)> SubmitDecodeCB;
+  // passed to SubmitDecode().
+  typedef base::Callback<
+    void(int32,
+         scoped_ptr<std::queue<VABufferID> >,
+         scoped_ptr<std::queue<VABufferID> >)> SubmitDecodeCB;
 
   // Decode result codes.
   enum DecResult {
     kDecodeError,  // Error while decoding.
     // TODO posciak: unsupported streams are currently treated as error
     // in decoding; in future it could perhaps be possible to fall back
     // to software decoding instead.
     // kStreamError,  // Error in stream.
     kReadyToDecode,  // Successfully initialized.
     kDecodedFrame,  // Successfully decoded a frame.
@@ skipping 291 matching lines @@
 
   // Has static initialization of pre-sandbox components completed successfully?
   static bool pre_sandbox_init_done_;
 
   DISALLOW_COPY_AND_ASSIGN(VaapiH264Decoder);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_VAAPI_H264_DECODER_H_