FileVideoCaptureDevice: If frames are lagging behind, don't try to catch up

media/video/capture/file_video_capture_device.cc

Index: media/video/capture/file_video_capture_device.cc
diff --git a/media/video/capture/file_video_capture_device.cc b/media/video/capture/file_video_capture_device.cc
index 5a45b4a065cb7f82a79a7c1999d8465834bd8af7..295a35b30d7be116c0eeb7dd052ec198841a37f6 100644
--- a/media/video/capture/file_video_capture_device.cc
+++ b/media/video/capture/file_video_capture_device.cc
@@ -249,6 +249,10 @@ void FileVideoCaptureDevice::OnCaptureTask() {
     next_frame_time_ = current_time + frame_interval;
   } else {
     next_frame_time_ += frame_interval;
+    // Don't accumulate any debt if we are lagging behind - just post next frame
+    // immediately and continue as normal.
+    if (next_frame_time_ < current_time)
+      next_frame_time_ = current_time;
   }
   base::MessageLoop::current()->PostDelayedTask(
       FROM_HERE,