Prime the landing pad for the new video rendering pipeline.

media/base/pipeline.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 "media/base/pipeline.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 50 matching lines @@
       media_log_->CreateEvent(MediaLogEvent::PIPELINE_DESTROYED));
 }
 
 void Pipeline::Start(Demuxer* demuxer,
                      scoped_ptr<Renderer> renderer,
                      const base::Closure& ended_cb,
                      const PipelineStatusCB& error_cb,
                      const PipelineStatusCB& seek_cb,
                      const PipelineMetadataCB& metadata_cb,
                      const BufferingStateCB& buffering_state_cb,
-                     const PaintCB& paint_cb,
                      const base::Closure& duration_change_cb,
                      const AddTextTrackCB& add_text_track_cb,
                      const base::Closure& waiting_for_decryption_key_cb) {
   DCHECK(!ended_cb.is_null());
   DCHECK(!error_cb.is_null());
   DCHECK(!seek_cb.is_null());
   DCHECK(!metadata_cb.is_null());
   DCHECK(!buffering_state_cb.is_null());
-  DCHECK(!paint_cb.is_null());
 
   base::AutoLock auto_lock(lock_);
   CHECK(!running_) << "Media pipeline is already running";
   running_ = true;
 
   demuxer_ = demuxer;
   renderer_ = renderer.Pass();
   ended_cb_ = ended_cb;
   error_cb_ = error_cb;
   seek_cb_ = seek_cb;
   metadata_cb_ = metadata_cb;
   buffering_state_cb_ = buffering_state_cb;
-  paint_cb_ = paint_cb;
   duration_change_cb_ = duration_change_cb;
   add_text_track_cb_ = add_text_track_cb;
   waiting_for_decryption_key_cb_ = waiting_for_decryption_key_cb;
 
   task_runner_->PostTask(
       FROM_HERE, base::Bind(&Pipeline::StartTask, weak_factory_.GetWeakPtr()));
 }
 
 void Pipeline::Stop(const base::Closure& stop_cb) {
   DVLOG(2) << __FUNCTION__;
@@ skipping 613 matching lines @@
     OnError(PIPELINE_ERROR_COULD_NOT_RENDER);
     return;
   }
 
   base::WeakPtr<Pipeline> weak_this = weak_factory_.GetWeakPtr();
   renderer_->Initialize(
       demuxer_,
       done_cb,
       base::Bind(&Pipeline::OnUpdateStatistics, weak_this),
       base::Bind(&Pipeline::BufferingStateChanged, weak_this),
-      base::ResetAndReturn(&paint_cb_),
       base::Bind(&Pipeline::OnRendererEnded, weak_this),
       base::Bind(&Pipeline::OnError, weak_this),
       waiting_for_decryption_key_cb_);
 }
 
 void Pipeline::ReportMetadata() {
   DCHECK(task_runner_->BelongsToCurrentThread());
   PipelineMetadata metadata;
   metadata.timeline_offset = demuxer_->GetTimelineOffset();
   DemuxerStream* stream = demuxer_->GetStream(DemuxerStream::VIDEO);
   if (stream) {
     metadata.has_video = true;
     metadata.natural_size = stream->video_decoder_config().natural_size();
     metadata.video_rotation = stream->video_rotation();
   }
   if (demuxer_->GetStream(DemuxerStream::AUDIO)) {
     metadata.has_audio = true;
   }
   metadata_cb_.Run(metadata);
 }
 
 void Pipeline::BufferingStateChanged(BufferingState new_buffering_state) {
   DVLOG(1) << __FUNCTION__ << "(" << new_buffering_state << ") ";
   DCHECK(task_runner_->BelongsToCurrentThread());
   buffering_state_cb_.Run(new_buffering_state);
 }
 
 }  // namespace media