Fixes to Cast use of overlays for video frames

chromecast/browser/cast_browser_main_parts.cc

Index: chromecast/browser/cast_browser_main_parts.cc
diff --git a/chromecast/browser/cast_browser_main_parts.cc b/chromecast/browser/cast_browser_main_parts.cc
index 046e3ba40757bcaddb9f3902864cd358a2af9f67..917b89d7d2355969d6c04bb52a951b07415eeaed 100644
--- a/chromecast/browser/cast_browser_main_parts.cc
+++ b/chromecast/browser/cast_browser_main_parts.cc
@@ -34,6 +34,7 @@
 #include "chromecast/browser/url_request_context_factory.h"
 #include "chromecast/common/platform_client_auth.h"
 #include "chromecast/media/base/key_systems_common.h"
+#include "chromecast/media/base/media_message_loop.h"
 #include "chromecast/net/connectivity_checker.h"
 #include "chromecast/public/cast_media_shlib.h"
 #include "chromecast/public/cast_sys_info.h"
@@ -390,7 +391,10 @@ void CastBrowserMainParts::PostMainMessageLoopRun() {
   DeregisterKillOnAlarm();
 #endif
 
-  media::CastMediaShlib::Finalize();
+  // Finalize CastMediaShlib on media thread to ensure it's not accessed
+  // after Finalize.
+  chromecast::media::MediaMessageLoop::GetTaskRunner()->PostTask(
+      FROM_HERE, base::Bind(&media::CastMediaShlib::Finalize));
 }
 
 }  // namespace shell