Add UMA histograms for more detailed latency tracking on the CRD host.

remoting/codec/video_encoder_helper.cc

Index: remoting/codec/video_encoder_helper.cc
diff --git a/remoting/codec/video_encoder_helper.cc b/remoting/codec/video_encoder_helper.cc
index 5310d01007a76a9a9ddff7e94b87925cb9ca68e3..288ec72a4fb5cd748ad6e5f624d2cbc8a3bdae45 100644
--- a/remoting/codec/video_encoder_helper.cc
+++ b/remoting/codec/video_encoder_helper.cc
@@ -57,8 +57,7 @@ VideoEncoderHelper::CreateVideoPacketWithUpdatedRegion(
     }
   }
 
-  // Store the capture time and frame DPI.
-  packet->set_capture_time_ms(frame.capture_time_ms());
+  // Store frame DPI.
   if (!frame.dpi().is_zero()) {
     packet->mutable_format()->set_x_dpi(frame.dpi().x());
     packet->mutable_format()->set_y_dpi(frame.dpi().y());