Fix ChunkDemuxer seek deadlock

media/filters/ffmpeg_audio_decoder_unittest.cc

Index: media/filters/ffmpeg_audio_decoder_unittest.cc
diff --git a/media/filters/ffmpeg_audio_decoder_unittest.cc b/media/filters/ffmpeg_audio_decoder_unittest.cc
index 12e2ce6c506a57c1f9e6a385458f0489ca304794..0efe91e8f4a939ff728ff3d7c66bb961cadab1d9 100644
--- a/media/filters/ffmpeg_audio_decoder_unittest.cc
+++ b/media/filters/ffmpeg_audio_decoder_unittest.cc
@@ -180,4 +180,20 @@ TEST_F(FFmpegAudioDecoderTest, ProduceAudioSamples) {
   Stop();
 }
 
+TEST_F(FFmpegAudioDecoderTest, ReadAbort) {
+  Initialize();
+
+  encoded_audio_.clear();
+  encoded_audio_.push_back(NULL);
+
+  EXPECT_CALL(*demuxer_, Read(_))
+      .WillOnce(InvokeReadPacket(this));
+  Read();
+
+  EXPECT_EQ(decoded_audio_.size(), 1u);
+  EXPECT_TRUE(decoded_audio_[0].get() ==  NULL);
+
+  Stop();
+}
+
 }  // namespace media