Wait for encode thread during VideoScheduler teardown.

remoting/host/video_scheduler.h

Index: remoting/host/video_scheduler.h
diff --git a/remoting/host/video_scheduler.h b/remoting/host/video_scheduler.h
index b8af8d07ceff900675f64b3f630ed00277b9ec03..4588ea3f729102a775a9b5158aaca9d6aad740cd 100644
--- a/remoting/host/video_scheduler.h
+++ b/remoting/host/video_scheduler.h
@@ -146,6 +146,10 @@ class VideoScheduler : public base::RefCountedThreadSafe<VideoScheduler>,
 
   void EncodedDataAvailableCallback(scoped_ptr<VideoPacket> packet);
 
+  // Used to synchronize capture and encode thread teardown, notifying the
+  // network thread when done.
+  void StopOnEncodeThread(const base::Closure& done_task);
+
   // Task runners used by this class.
   scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> encode_task_runner_;