Implement a dummy host to do capturing and analysis only.

remoting/protocol/fake_connection_to_client.cc

Index: remoting/protocol/fake_connection_to_client.cc
diff --git a/remoting/protocol/fake_connection_to_client.cc b/remoting/protocol/fake_connection_to_client.cc
index 8d115f5a38255e8fa32987b77eb747464fe04861..6c622d884ef7095df39d2c15b50647de5ff2db2e 100644
--- a/remoting/protocol/fake_connection_to_client.cc
+++ b/remoting/protocol/fake_connection_to_client.cc
@@ -6,7 +6,9 @@
 
 #include <utility>
 
+#include "remoting/codec/video_encoder.h"
 #include "remoting/protocol/session.h"
+#include "remoting/protocol/video_frame_pump.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_capturer.h"
 
 namespace remoting {
@@ -42,6 +44,19 @@ void FakeConnectionToClient::SetEventHandler(EventHandler* event_handler) {
 
 std::unique_ptr<VideoStream> FakeConnectionToClient::StartVideoStream(
     std::unique_ptr<webrtc::DesktopCapturer> desktop_capturer) {
+  if (video_stub_ && video_encode_task_runner_) {
+    std::unique_ptr<VideoEncoder> video_encoder =
+        VideoEncoder::Create(session_->config());
+
+    std::unique_ptr<protocol::VideoFramePump> pump(
+        new protocol::VideoFramePump(video_encode_task_runner_,
+                                     std::move(desktop_capturer),
+                                     std::move(video_encoder),
+                                     video_stub_));
+    video_feedback_stub_ = pump->video_feedback_stub();
+    return std::move(pump);
+  }
+
   std::unique_ptr<FakeVideoStream> result(new FakeVideoStream());
   last_video_stream_ = result->GetWeakPtr();
   return std::move(result);