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

mojo/shell/public/cpp/lib/application_test_base.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 <utility>
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "mojo/public/cpp/environment/environment.h"
 #include "mojo/public/cpp/system/message_pipe.h"
 #include "mojo/shell/public/cpp/application_test_base.h"
 #include "mojo/shell/public/cpp/shell_connection.h"
 #include "mojo/shell/public/interfaces/shell_client.mojom.h"
 
 namespace mojo {
 namespace test {
 
 namespace {
 // Share the application URL with multiple application tests.
 String g_url;
-uint32_t g_id = shell::mojom::Shell::kInvalidApplicationID;
-uint32_t g_user_id = shell::mojom::Shell::kUserRoot;
+uint32_t g_id = shell::mojom::Connector::kInvalidApplicationID;
+uint32_t g_user_id = shell::mojom::Connector::kUserRoot;
 
 // ShellClient request handle passed from the shell in MojoMain, stored in
 // between SetUp()/TearDown() so we can (re-)intialize new ShellConnections.
 InterfaceRequest<shell::mojom::ShellClient> g_shell_client_request;
 
 // Shell pointer passed in the initial mojo.ShellClient.Initialize() call,
 // stored in between initial setup and the first test and between SetUp/TearDown
 // calls so we can (re-)initialize new ShellConnections.
 shell::mojom::ShellPtr g_shell;
 
@@ skipping 135 matching lines @@
   if (ShouldCreateDefaultRunLoop())
     Environment::DestroyDefaultRunLoop();
 }
 
 bool ApplicationTestBase::ShouldCreateDefaultRunLoop() {
   return true;
 }
 
 }  // namespace test
 }  // namespace mojo