Extract a Connector interface from Shell that can be cloned & passed to other threads

mojo/shell/runner/child/test_native_main.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 "mojo/shell/runner/child/test_native_main.h"
 
 #include <utility>
 
 #include "base/debug/stack_trace.h"
 #include "base/macros.h"
@@ skipping 39 matching lines @@
   {
     mojo::edk::Init();
 
     ProcessDelegate process_delegate;
     base::Thread io_thread("io_thread");
     base::Thread::Options io_thread_options(base::MessageLoop::TYPE_IO, 0);
     CHECK(io_thread.StartWithOptions(io_thread_options));
 
     mojo::edk::InitIPCSupport(&process_delegate, io_thread.task_runner());
 
-    mojo::ShellClientRequest request;
+    mojom::ShellClientRequest request;
     scoped_ptr<mojo::shell::RunnerConnection> connection(
         mojo::shell::RunnerConnection::ConnectToRunner(
             &request, ScopedMessagePipeHandle()));
     base::MessageLoop loop(mojo::common::MessagePumpMojo::Create());
     mojo::ShellConnection impl(shell_client, std::move(request));
     loop.Run();
 
     mojo::edk::ShutdownIPCSupport();
   }
 
   return 0;
 }
 
 }  // namespace shell
 }  // namespace mojo