Avoid a thread hop when initializing IPC to new processes

content/browser/child_process_launcher.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_BROWSER_CHILD_PROCESS_LAUNCHER_H_
 #define CONTENT_BROWSER_CHILD_PROCESS_LAUNCHER_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 115 matching lines @@
   // previous  client.
   Client* ReplaceClientForTest(Client* client);
 
  private:
   friend class internal::ChildProcessLauncherHelper;
 
   void UpdateTerminationStatus(bool known_dead);
 
   // Notifies the client about the result of the operation.
   void Notify(internal::ChildProcessLauncherHelper::Process process,
-              mojo::edk::ScopedPlatformHandle server_handle,
               int error_code);
 
   Client* client_;
   BrowserThread::ID client_thread_id_;
 
   // The process associated with this ChildProcessLauncher. Set in Notify by
   // ChildProcessLauncherHelper once the process was started.
   internal::ChildProcessLauncherHelper::Process process_;
 
   base::TerminationStatus termination_status_;
   int exit_code_;
   bool starting_;
-  std::unique_ptr<mojo::edk::PendingProcessConnection> pending_connection_;
   const mojo::edk::ProcessErrorCallback process_error_callback_;
 
   // Controls whether the child process should be terminated on browser
   // shutdown. Default behavior is to terminate the child.
   const bool terminate_child_on_shutdown_;
 
   scoped_refptr<internal::ChildProcessLauncherHelper> helper_;
 
   base::WeakPtrFactory<ChildProcessLauncher> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildProcessLauncher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_CHILD_PROCESS_LAUNCHER_H_