Win Video Capture: Sending the timestamps provided by the driver to the capture pipeline

media/capture/video/win/video_capture_device_win.cc

Index: media/capture/video/win/video_capture_device_win.cc
diff --git a/media/capture/video/win/video_capture_device_win.cc b/media/capture/video/win/video_capture_device_win.cc
index c9961fa222eb84d90c768ea9e40da3574cf63074..9d20748c6207797afb294da60726fbe46143969c 100644
--- a/media/capture/video/win/video_capture_device_win.cc
+++ b/media/capture/video/win/video_capture_device_win.cc
@@ -447,9 +447,18 @@ void VideoCaptureDeviceWin::StopAndDeAllocate() {
 }
 
 // Implements SinkFilterObserver::SinkFilterObserver.
-void VideoCaptureDeviceWin::FrameReceived(const uint8* buffer, int length) {
+void VideoCaptureDeviceWin::FrameReceived(
+    const uint8* buffer,
+    int length,
+    REFERENCE_TIME raw_timestamp) {
+  base::TimeTicks timestamp;
+  if (raw_timestamp < 0)
+    timestamp = base::TimeTicks::Now();
+  else
+    timestamp += base::TimeDelta::FromMicroseconds(raw_timestamp / 10);
+
   client_->OnIncomingCapturedData(buffer, length, capture_format_, 0,
-                                  base::TimeTicks::Now());
+                                  timestamp);
 }
 
 bool VideoCaptureDeviceWin::CreateCapabilityMap() {