Remove some InterfacePtr<> methods which directly deal with message pipe handles.

mojo/public/cpp/application/lib/application_impl.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "mojo/public/cpp/application/application_impl.h"
 
 #include "mojo/public/cpp/application/application_delegate.h"
 #include "mojo/public/cpp/application/lib/service_registry.h"
 #include "mojo/public/cpp/bindings/interface_ptr.h"
 #include "mojo/public/cpp/environment/logging.h"
@@ skipping 74 matching lines @@
 
 void ApplicationImpl::WaitForInitialize() {
   if (!shell_)
     binding_.WaitForIncomingMethodCall();
 }
 
 void ApplicationImpl::UnbindConnections(
     InterfaceRequest<Application>* application_request,
     ShellPtr* shell) {
   *application_request = binding_.Unbind();
-  shell->Bind(shell_.PassMessagePipe());
+  shell->Bind(shell_.PassInterface());
 }
 
 void ApplicationImpl::AcceptConnection(
     const String& requestor_url,
     InterfaceRequest<ServiceProvider> services,
     ServiceProviderPtr exposed_services,
     const String& url) {
   internal::ServiceRegistry* registry = new internal::ServiceRegistry(
       this, url, requestor_url, exposed_services.Pass(), services.Pass());
   if (!delegate_->ConfigureIncomingConnection(registry)) {
     delete registry;
     return;
   }
   incoming_service_registries_.push_back(registry);
 }
 
 void ApplicationImpl::RequestQuit() {
   delegate_->Quit();
   Terminate();
 }
 
 }  // namespace mojo