Convert Filter::Seek() to use new callback system.

media/filters/ffmpeg_demuxer_unittest.cc

 // Copyright (c) 2011 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 <deque>
 
 #include "base/threading/thread.h"
 #include "media/base/filters.h"
 #include "media/base/mock_callback.h"
 #include "media/base/mock_ffmpeg.h"
@@ skipping 407 matching lines @@
       .WillOnce(Return(0));
 
   EXPECT_CALL(mock_ffmpeg_, CheckPoint(1));
 
   // ...then we'll expect a seek call...
   EXPECT_CALL(mock_ffmpeg_,
       AVSeekFrame(&format_context_, -1, kExpectedTimestamp, kExpectedFlags))
       .WillOnce(Return(0));
 
   // ...then our callback will be executed...
-  FilterCallback* seek_callback = NewExpectedCallback();
+  FilterStatusCB seek_cb = NewExpectedStatusCB(PIPELINE_OK);
   EXPECT_CALL(mock_ffmpeg_, CheckPoint(2));
 
   // ...followed by two audio packet reads we'll trigger...
   EXPECT_CALL(mock_ffmpeg_, AVReadFrame(&format_context_, _))
       .WillOnce(CreatePacketNoCount(AV_STREAM_AUDIO, kAudioData, kDataSize));
   EXPECT_CALL(mock_ffmpeg_, AVDupPacket(_))
       .WillOnce(Return(0));
   EXPECT_CALL(mock_ffmpeg_, AVReadFrame(&format_context_, _))
       .WillOnce(CreatePacketNoCount(AV_STREAM_AUDIO, kAudioData, kDataSize));
   EXPECT_CALL(mock_ffmpeg_, AVDupPacket(_))
@@ skipping 22 matching lines @@
   EXPECT_EQ(0, memcmp(kVideoData, reader->buffer()->GetData(),
                       reader->buffer()->GetDataSize()));
 
   // Release the video packet and verify the other packets are still queued.
   reader->Reset();
   message_loop_.RunAllPending();
   mock_ffmpeg_.CheckPoint(1);
 
   // Issue a simple forward seek, which should discard queued packets.
   demuxer_->Seek(base::TimeDelta::FromMicroseconds(kExpectedTimestamp),
-                 seek_callback);
+                 seek_cb);
   message_loop_.RunAllPending();
   mock_ffmpeg_.CheckPoint(2);
 
   // Audio read #1.
   reader->Read(audio);
   message_loop_.RunAllPending();
   EXPECT_TRUE(reader->called());
   ASSERT_TRUE(reader->buffer());
   ASSERT_EQ(kDataSize, reader->buffer()->GetDataSize());
   EXPECT_EQ(0, memcmp(kAudioData, reader->buffer()->GetData(),
@@ skipping 251 matching lines @@
   {
     SCOPED_TRACE("");
     InitializeDemuxer();
   }
   EXPECT_CALL(*data_source_, IsStreaming())
       .WillOnce(Return(false));
   EXPECT_FALSE(demuxer_->IsStreaming());
 }
 
 }  // namespace media