Mandoline: Introduce ApplicationConnection::CloseConnection

mojo/application/public/cpp/lib/application_runner.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/application/public/cpp/application_runner.h"
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/debug/stack_trace.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 50 matching lines @@
                          MakeRequest<Application>(MakeScopedHandle(
                              MessagePipeHandle(application_request_handle))));
     loop->Run();
     // It's very common for the delegate to cache the app and terminate on
     // errors. If we don't delete the delegate before the app we run the risk
     // of the delegate having a stale reference to the app and trying to use it.
     // Note that we destruct the message loop first because that might trigger
     // connection error handlers and they might access objects created by the
     // delegate.
     loop.reset();
+    // Give |impl| an opportunity to perform some cleanup prior to destruction
+    // of the delegate.
+    impl.WillDestroySoon();
     delegate_.reset();
   }
   return MOJO_RESULT_OK;
 }
 
 MojoResult ApplicationRunner::Run(MojoHandle application_request_handle) {
   return Run(application_request_handle, true);
 }
 
 }  // namespace mojo