NaCl plugin: Make ServiceRuntime::Shutdown() kill the NaCl loader

components/nacl/renderer/plugin/service_runtime.cc

Index: components/nacl/renderer/plugin/service_runtime.cc
diff --git a/components/nacl/renderer/plugin/service_runtime.cc b/components/nacl/renderer/plugin/service_runtime.cc
index 3965e2ef864b936682d263f657aae7589ae3f8e5..de2b6e29ffc20a1b2c8cdd1ff8bf51acebcb3539 100644
--- a/components/nacl/renderer/plugin/service_runtime.cc
+++ b/components/nacl/renderer/plugin/service_runtime.cc
@@ -42,11 +42,12 @@ void ServiceRuntime::StartSelLdr(const SelLdrStartParams& params,
       callback.pp_completion_callback());
 }
 
-// TODO(mseaborn): Remove this method, since it is a no-op.
 void ServiceRuntime::Shutdown() {
+  nacl::PPBNaClPrivate::TerminateNaClLoader(pp_instance_);
 }
 
 ServiceRuntime::~ServiceRuntime() {
+  Shutdown();
 }
 
 }  // namespace plugin