Tab (and AuraWindow) Capture: Capture refresh frame after Resume()

content/browser/media/capture/aura_window_capture_machine.cc

Index: content/browser/media/capture/aura_window_capture_machine.cc
diff --git a/content/browser/media/capture/aura_window_capture_machine.cc b/content/browser/media/capture/aura_window_capture_machine.cc
index 561e68a6f509eafb43df0c15ebfe1d3ba649c735..061b55ee81d356921d8636b980feb8d567fb5975 100644
--- a/content/browser/media/capture/aura_window_capture_machine.cc
+++ b/content/browser/media/capture/aura_window_capture_machine.cc
@@ -117,6 +117,9 @@ void AuraWindowCaptureMachine::InternalResume() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DVLOG(1) << "Resuming frame capture and delivery.";
   frame_capture_active_ = true;
+  // Whenever capture resumes, capture a refresh frame immediately to make sure
+  // no content updates are missing from the video stream.
+  MaybeCaptureForRefresh();
 }
 
 void AuraWindowCaptureMachine::Stop(const base::Closure& callback) {