Move shell service to toplevel shell namespace

components/font_service/font_service_app.cc

Index: components/font_service/font_service_app.cc
diff --git a/components/font_service/font_service_app.cc b/components/font_service/font_service_app.cc
index f4d1708638e002845e466831e3e6da71e9824552..ae87c8d8bc6391b6c885ec6913e9e3e9d1e5bb4a 100644
--- a/components/font_service/font_service_app.cc
+++ b/components/font_service/font_service_app.cc
@@ -51,18 +51,18 @@ FontServiceApp::FontServiceApp() {}
 
 FontServiceApp::~FontServiceApp() {}
 
-void FontServiceApp::Initialize(mojo::Connector* connector,
-                                const mojo::Identity& identity,
+void FontServiceApp::Initialize(shell::Connector* connector,
+                                const shell::Identity& identity,
                                 uint32_t id) {
   tracing_.Initialize(connector, identity.name());
 }
 
-bool FontServiceApp::AcceptConnection(mojo::Connection* connection) {
+bool FontServiceApp::AcceptConnection(shell::Connection* connection) {
   connection->AddInterface(this);
   return true;
 }
 
-void FontServiceApp::Create(mojo::Connection* connection,
+void FontServiceApp::Create(shell::Connection* connection,
                             mojo::InterfaceRequest<FontService> request) {
   bindings_.AddBinding(this, std::move(request));
 }