PPAPI: Make blocking completion callbacks work.

ppapi/thunk/ppb_video_decoder_thunk.cc

 // 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.
 
 #include "ppapi/c/pp_errors.h"
+#include "ppapi/shared_impl/tracked_callback.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/thunk.h"
 #include "ppapi/thunk/ppb_video_decoder_api.h"
 #include "ppapi/thunk/resource_creation_api.h"
 
 namespace ppapi {
 namespace thunk {
 
 namespace {
 
@@ skipping 12 matching lines @@
   EnterVideoDecoder enter(resource, false);
   return PP_FromBool(enter.succeeded());
 }
 
 int32_t Decode(PP_Resource video_decoder,
                const PP_VideoBitstreamBuffer_Dev* bitstream_buffer,
                PP_CompletionCallback callback) {
   EnterVideoDecoder enter(video_decoder, callback, true);
   if (enter.failed())
     return enter.retval();
-  return enter.SetResult(enter.object()->Decode(bitstream_buffer, callback));
+  return enter.SetResult(enter.object()->Decode(bitstream_buffer,
+                                                enter.callback()));
 }
 
 void AssignPictureBuffers(PP_Resource video_decoder,
                           uint32_t no_of_buffers,
                           const PP_PictureBuffer_Dev* buffers) {
   EnterVideoDecoder enter(video_decoder, true);
   if (enter.succeeded())
     enter.object()->AssignPictureBuffers(no_of_buffers, buffers);
 }
 
 void ReusePictureBuffer(PP_Resource video_decoder, int32_t picture_buffer_id) {
   EnterVideoDecoder enter(video_decoder, true);
   if (enter.succeeded())
     enter.object()->ReusePictureBuffer(picture_buffer_id);
 }
 
 int32_t Flush(PP_Resource video_decoder, PP_CompletionCallback callback) {
   EnterVideoDecoder enter(video_decoder, callback, true);
   if (enter.failed())
     return enter.retval();
-  return enter.SetResult(enter.object()->Flush(callback));
+  return enter.SetResult(enter.object()->Flush(enter.callback()));
 }
 
 int32_t Reset(PP_Resource video_decoder,
               PP_CompletionCallback callback) {
   EnterVideoDecoder enter(video_decoder, callback, true);
   if (enter.failed())
     return enter.retval();
-  return enter.SetResult(enter.object()->Reset(callback));
+  return enter.SetResult(enter.object()->Reset(enter.callback()));
 }
 
 void Destroy(PP_Resource video_decoder) {
   EnterVideoDecoder enter(video_decoder, true);
   if (enter.succeeded())
     enter.object()->Destroy();
 }
 
 const PPB_VideoDecoder_Dev g_ppb_videodecoder_thunk = {
   &Create,
   &IsVideoDecoder,
   &Decode,
   &AssignPictureBuffers,
   &ReusePictureBuffer,
   &Flush,
   &Reset,
   &Destroy
 };
 
 }  // namespace
 
 const PPB_VideoDecoder_Dev_0_16* GetPPB_VideoDecoder_Dev_0_16_Thunk() {
   return &g_ppb_videodecoder_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi