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

examples/echo/echo_client.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 <stdio.h>
+#include <memory>
 
 #include "base/logging.h"
 #include "examples/echo/echo.mojom.h"
 #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/utility/run_loop.h"
 
 namespace mojo {
@@ skipping 16 matching lines @@
   }
 
  private:
   EchoPtr echo_;
 };
 
 }  // namespace examples
 }  // namespace mojo
 
 MojoResult MojoMain(MojoHandle application_request) {
-  mojo::ApplicationRunner runner(new mojo::examples::EchoClientDelegate);
+  mojo::ApplicationRunner runner(
+      std::unique_ptr<mojo::examples::EchoClientDelegate>(
+          new mojo::examples::EchoClientDelegate()));
   return runner.Run(application_request);
 }