blimp: Add settings to allow the client to download the whole page.

blimp/engine/session/blimp_engine_session.cc

Index: blimp/engine/session/blimp_engine_session.cc
diff --git a/blimp/engine/session/blimp_engine_session.cc b/blimp/engine/session/blimp_engine_session.cc
index 9543a83ddd5962832eda067bdb310e92faa39681..126073f262a493936286c1b1b8ca9c750a70b256 100644
--- a/blimp/engine/session/blimp_engine_session.cc
+++ b/blimp/engine/session/blimp_engine_session.cc
@@ -180,6 +180,7 @@ BlimpEngineSession::BlimpEngineSession(
     : browser_context_(std::move(browser_context)),
       engine_config_(engine_config),
       screen_(new BlimpScreen),
+      render_widget_feature_(&settings_feature_),
       net_components_(
           new EngineNetworkComponents(net_log,
                                       QuitCurrentMessageLoopClosure())) {
@@ -257,6 +258,9 @@ void BlimpEngineSession::RegisterFeatures() {
   render_widget_feature_.set_compositor_message_sender(
       thread_pipe_manager_->RegisterFeature(BlimpMessage::COMPOSITOR,
                                             &render_widget_feature_));
+  settings_feature_.set_outgoing_message_processor(
+      thread_pipe_manager_->RegisterFeature(BlimpMessage::SETTINGS,
+                                            &settings_feature_));
 }
 
 bool BlimpEngineSession::CreateWebContents(const int target_tab_id) {