Chromoting to report roundtrip latency

remoting/base/encoder_vp8.cc

Index: remoting/base/encoder_vp8.cc
diff --git a/remoting/base/encoder_vp8.cc b/remoting/base/encoder_vp8.cc
index 0d24f7dcd6f3332e064116781dd8342e3bd9d0b9..84a0bc67b669e2e87d71c60592ae77a6b7a9b2ce 100644
--- a/remoting/base/encoder_vp8.cc
+++ b/remoting/base/encoder_vp8.cc
@@ -268,6 +268,7 @@ void EncoderVp8::Encode(scoped_refptr<CaptureData> capture_data,
   message->mutable_format()->set_screen_width(capture_data->size().width());
   message->mutable_format()->set_screen_height(capture_data->size().height());
   message->set_capture_time_ms(capture_data->capture_time_ms());
+  message->set_client_sequence_number(capture_data->client_sequence_number());
   for (size_t i = 0; i < updated_rects.size(); ++i) {
     Rect* rect = message->add_dirty_rects();
     rect->set_x(updated_rects[i].x());