Add inspect command to skydb

sky/viewer/document_view.cc

Index: sky/viewer/document_view.cc
diff --git a/sky/viewer/document_view.cc b/sky/viewer/document_view.cc
index 2265ae1930a9005ad7ee26a8a32b260e8c7b4481..d5754d75405afcd8b79b781b0e73166003bf4cb0 100644
--- a/sky/viewer/document_view.cc
+++ b/sky/viewer/document_view.cc
@@ -75,6 +75,7 @@ DocumentView::DocumentView(
       web_view_(NULL),
       root_(NULL),
       view_manager_client_factory_(shell, this),
+      inspector_service_factory_(this),
       compositor_thread_(compositor_thread),
       weak_factory_(this) {
   mojo::ServiceProviderImpl* exported_services = new mojo::ServiceProviderImpl();
@@ -102,6 +103,7 @@ void DocumentView::OnEmbed(
   root_ = root;
   imported_services_ = imported_services.Pass();
   navigator_host_.set_service_provider(imported_services_.get());
+  exported_services->AddService(&inspector_service_factory_);
 
   Load(response_.Pass());