Implement OnGetNetworks for net.mojom

components/arc/arc_service_manager.cc

Index: components/arc/arc_service_manager.cc
diff --git a/components/arc/arc_service_manager.cc b/components/arc/arc_service_manager.cc
index 9b8bd81b0922b3e939b56bdb22b936e2f95fc4bc..c83f9e76c0eee0e79d217b557d83adb09003605d 100644
--- a/components/arc/arc_service_manager.cc
+++ b/components/arc/arc_service_manager.cc
@@ -11,6 +11,7 @@
 #include "components/arc/auth/arc_auth_service.h"
 #include "components/arc/clipboard/arc_clipboard_bridge.h"
 #include "components/arc/input/arc_input_bridge.h"
+#include "components/arc/net/arc_net_host_impl.h"
 #include "components/arc/power/arc_power_bridge.h"
 #include "components/arc/settings/arc_settings_bridge.h"
 
@@ -31,6 +32,7 @@ ArcServiceManager::ArcServiceManager(
       arc_auth_service_(std::move(auth_service)),
       arc_clipboard_bridge_(new ArcClipboardBridge(arc_bridge_service_.get())),
       arc_input_bridge_(ArcInputBridge::Create(arc_bridge_service_.get())),
+      arc_net_host_(new ArcNetHostImpl(arc_bridge_service_.get())),
       arc_settings_bridge_(std::move(settings_bridge)),
       arc_power_bridge_(new ArcPowerBridge(arc_bridge_service_.get())) {
   DCHECK(!g_arc_service_manager);