core_services: Add mojo:surfaces_service to core_services.

components/surfaces/surfaces_service_application.cc

Index: components/surfaces/surfaces_service_application.cc
diff --git a/components/surfaces/surfaces_service_application.cc b/components/surfaces/surfaces_service_application.cc
index 8553023e5c664ca24ee9beb2a3f85865ae62fb8a..172a394dd727cdf7c73229239d3eab3b67685f67 100644
--- a/components/surfaces/surfaces_service_application.cc
+++ b/components/surfaces/surfaces_service_application.cc
@@ -7,8 +7,6 @@
 #include "components/surfaces/display_factory_impl.h"
 #include "components/surfaces/surfaces_impl.h"
 #include "components/surfaces/surfaces_scheduler.h"
-#include "mojo/application/application_runner_chromium.h"
-#include "third_party/mojo/src/mojo/public/c/system/main.h"
 
 namespace surfaces {
 
@@ -46,9 +44,3 @@ void SurfacesServiceApplication::Create(
 }
 
 }  // namespace surfaces
-
-MojoResult MojoMain(MojoHandle shell_handle) {
-  mojo::ApplicationRunnerChromium runner(
-      new surfaces::SurfacesServiceApplication);
-  return runner.Run(shell_handle);
-}