Eliminate MojoApplicationHost

services/shell/public/cpp/lib/interface_provider.cc

Index: services/shell/public/cpp/lib/interface_provider.cc
diff --git a/services/shell/public/cpp/lib/interface_provider.cc b/services/shell/public/cpp/lib/interface_provider.cc
index 6636444312992bb9b918ca02b81582c7edec688c..209d356ac476bb6a79d8cfc51f389500c8b297b7 100644
--- a/services/shell/public/cpp/lib/interface_provider.cc
+++ b/services/shell/public/cpp/lib/interface_provider.cc
@@ -6,12 +6,17 @@
 
 namespace shell {
 
-InterfaceProvider::InterfaceProvider(
-    mojom::InterfaceProviderPtr interface_provider)
-    : interface_provider_(std::move(interface_provider)),
-      weak_factory_(this) {}
+InterfaceProvider::InterfaceProvider() : weak_factory_(this) {
+  pending_request_ = GetProxy(&interface_provider_);
+}
 InterfaceProvider::~InterfaceProvider() {}
 
+void InterfaceProvider::Bind(mojom::InterfaceProviderPtr interface_provider) {
+  DCHECK(pending_request_.is_pending());
+  mojo::FuseInterface(std::move(pending_request_),
+                      interface_provider.PassInterface());
+}
+
 void InterfaceProvider::SetConnectionLostClosure(
     const base::Closure& connection_lost_closure) {
   interface_provider_.set_connection_error_handler(connection_lost_closure);