Make Mandoline shut down cleanly.

components/native_viewport/native_viewport_impl.cc

Index: components/native_viewport/native_viewport_impl.cc
diff --git a/components/native_viewport/native_viewport_impl.cc b/components/native_viewport/native_viewport_impl.cc
index 2f85500088553deddbbbaca9b657e83e1ddf9dfe..9644d5cab10fcf9190bda14e243c5f7c6b47237d 100644
--- a/components/native_viewport/native_viewport_impl.cc
+++ b/components/native_viewport/native_viewport_impl.cc
@@ -20,8 +20,10 @@ namespace native_viewport {
 NativeViewportImpl::NativeViewportImpl(
     bool is_headless,
     const scoped_refptr<gles2::GpuState>& gpu_state,
-    mojo::InterfaceRequest<mojo::NativeViewport> request)
+    mojo::InterfaceRequest<mojo::NativeViewport> request,
+    scoped_ptr<mojo::ServiceRefcount> service_refcount)
     : is_headless_(is_headless),
+      service_refcount_(service_refcount.Pass()),
       context_provider_(gpu_state),
       sent_metrics_(false),
       metrics_(mojo::ViewportMetrics::New()),
@@ -150,8 +152,7 @@ bool NativeViewportImpl::OnEvent(mojo::EventPtr event) {
 }
 
 void NativeViewportImpl::OnDestroyed() {
-  // This will signal a connection error and cause us to delete |this|.
-  binding_.Close();
+  delete this;
 }
 
 void NativeViewportImpl::OnConnectionError() {