Avoid deadlock between Pipeline and RendererImpl.

content/browser/media/media_source_browsertest.cc

Index: content/browser/media/media_source_browsertest.cc
diff --git a/content/browser/media/media_source_browsertest.cc b/content/browser/media/media_source_browsertest.cc
index 14887c69978ffd4dd9f16474e3eb2552fcbb8582..90d0c84219fdb5774774c2a29656e3e62833809b 100644
--- a/content/browser/media/media_source_browsertest.cc
+++ b/content/browser/media/media_source_browsertest.cc
@@ -10,14 +10,12 @@
 #endif
 
 // Common media types.
-#if !defined(THREAD_SANITIZER)
 const char kWebMAudioOnly[] = "audio/webm; codecs=\"vorbis\"";
 #if !defined(OS_ANDROID)
 const char kWebMOpusAudioOnly[] = "audio/webm; codecs=\"opus\"";
 #endif
 const char kWebMVideoOnly[] = "video/webm; codecs=\"vp8\"";
 const char kWebMAudioVideo[] = "video/webm; codecs=\"vorbis, vp8\"";
-#endif  // !defined(THREAD_SANITIZER)
 
 namespace content {
 
@@ -57,8 +55,6 @@ class MediaSourceTest : public content::MediaBrowserTest {
 #endif
 };
 
-// http://crbug.com/407452
-#if !defined(THREAD_SANITIZER)
 IN_PROC_BROWSER_TEST_F(MediaSourceTest, Playback_VideoAudio_WebM) {
   TestSimplePlayback("bear-320x240.webm", kWebMAudioVideo, kEnded);
 }
@@ -94,6 +90,5 @@ IN_PROC_BROWSER_TEST_F(MediaSourceTest, ConfigChangeVideo) {
                    kEnded,
                    true);
 }
-#endif  // !defined(THREAD_SANITIZER)
 
 }  // namespace content