Avoid deadlock between Pipeline and RendererImpl.

media/filters/pipeline_integration_test.cc

Index: media/filters/pipeline_integration_test.cc
diff --git a/media/filters/pipeline_integration_test.cc b/media/filters/pipeline_integration_test.cc
index f893fd9e0629669d415569e52e3e978d38dc2254..3f246465339516a35bfae186607016100d6533c6 100644
--- a/media/filters/pipeline_integration_test.cc
+++ b/media/filters/pipeline_integration_test.cc
@@ -1425,8 +1425,6 @@ TEST_F(PipelineIntegrationTest, ChunkDemuxerAbortRead_AudioOnly) {
                                  0x10CA, 19730));
 }
 
-// http://crbug.com/407452
-#if !defined(THREAD_SANITIZER)
 // Verify video decoder & renderer can handle aborted demuxer reads.
 TEST_F(PipelineIntegrationTest, ChunkDemuxerAbortRead_VideoOnly) {
   ASSERT_TRUE(TestSeekDuringRead("bear-320x240-video-only.webm", kVideoOnlyWebM,
@@ -1435,7 +1433,6 @@ TEST_F(PipelineIntegrationTest, ChunkDemuxerAbortRead_VideoOnly) {
                                  base::TimeDelta::FromMilliseconds(1668),
                                  0x1C896, 65536));
 }
-#endif  // !defined(THREAD_SANITIZER)
 
 // Verify that Opus audio in WebM containers can be played back.
 TEST_F(PipelineIntegrationTest, BasicPlayback_AudioOnly_Opus_WebM) {