Make ApplicationRunner's ctor's ApplicationDelegate* argument an std::unique_ptr instead.

shell/test/pingable_app.cc

 // Copyright 2015 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 <memory>
+
 #include "mojo/public/c/system/main.h"
 #include "mojo/public/cpp/application/application_delegate.h"
 #include "mojo/public/cpp/application/application_impl.h"
 #include "mojo/public/cpp/application/application_runner.h"
 #include "mojo/public/cpp/application/interface_factory.h"
 #include "mojo/public/cpp/bindings/callback.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
 #include "shell/test/pingable.mojom.h"
 
@@ skipping 43 matching lines @@
   // InterfaceFactory<Pingable>:
   void Create(mojo::ApplicationConnection* connection,
               mojo::InterfaceRequest<Pingable> request) override {
     new PingableImpl(request.Pass(), app_url_, connection->GetConnectionURL());
   }
 
   std::string app_url_;
 };
 
 MojoResult MojoMain(MojoHandle application_request) {
-  mojo::ApplicationRunner runner(new PingableApp);
+  mojo::ApplicationRunner runner(
+      std::unique_ptr<PingableApp>(new PingableApp()));
   return runner.Run(application_request);
 }