Account for expected capture and encode latency in WebrtcFrameSchedulerSimple

remoting/protocol/webrtc_frame_scheduler_simple.h

Index: remoting/protocol/webrtc_frame_scheduler_simple.h
diff --git a/remoting/protocol/webrtc_frame_scheduler_simple.h b/remoting/protocol/webrtc_frame_scheduler_simple.h
index 17a1f0017b817d30ededb04e642b3a68a40912e8..66ecfd2444c9638dc6e7c46d0c520ee5c74355c1 100644
--- a/remoting/protocol/webrtc_frame_scheduler_simple.h
+++ b/remoting/protocol/webrtc_frame_scheduler_simple.h
@@ -8,6 +8,7 @@
 #include "remoting/protocol/webrtc_frame_scheduler.h"
 
 #include "base/timer/timer.h"
+#include "remoting/base/running_samples.h"
 
 namespace remoting {
 namespace protocol {
@@ -47,6 +48,9 @@ class WebrtcFrameSchedulerSimple : public WebrtcFrameScheduler {
   // Set to true when encoding unchanged frames for top-off.
   bool top_off_is_active_ = false;
 
+  // Accumulator for capture and encoder delay history.
+  RunningSamples frame_processing_delay_us_;
+
   base::OneShotTimer capture_timer_;
 };