Replace trampolining in FFmpegDemuxer with explicit thread calling convention checks.

media/filters/ffmpeg_demuxer_unittest.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 <algorithm>
 #include <deque>
 #include <string>
 
 #include "base/bind.h"
 #include "base/file_path.h"
@@ skipping 506 matching lines @@
   EXPECT_TRUE(IsStreamStopped(DemuxerStream::AUDIO));
 
   // Attempt a read from the video stream: it should return valid data.
   video->Read(NewReadCB(FROM_HERE, 22084, 0));
   message_loop_.Run();
 
   // Attempt a read from the audio stream: it should immediately return end of
   // stream without requiring the message loop to read data.
   bool got_eos_buffer = false;
   audio->Read(base::Bind(&EosOnReadDone, &got_eos_buffer));
+  message_loop_.RunUntilIdle();
   EXPECT_TRUE(got_eos_buffer);
 }
 
 // Verify that seek works properly when the WebM cues data is at the start of
 // the file instead of at the end.
 TEST_F(FFmpegDemuxerTest, SeekWithCuesBeforeFirstCluster) {
   CreateDemuxer("bear-320x240-cues-in-front.webm");
   InitializeDemuxer();
 
   // Get our streams.
@@ skipping 73 matching lines @@
 TEST_F(FFmpegDemuxerTest, UnsupportedVideoSupportedAudioDemux) {
   CreateDemuxer("vorbis_audio_wmv_video.mkv");
   InitializeDemuxer();
 
   // Ensure the expected streams are present.
   EXPECT_FALSE(demuxer_->GetStream(DemuxerStream::VIDEO));
   EXPECT_TRUE(demuxer_->GetStream(DemuxerStream::AUDIO));
 }
 
 }  // namespace media