Revert of Move content's shell connections to the IO thread

services/shell/public/cpp/connector.h

 // Copyright 2016 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 SERVICES_SHELL_PUBLIC_CPP_CONNECTOR_H_
 #define SERVICES_SHELL_PUBLIC_CPP_CONNECTOR_H_
 
 #include <memory>
 
 #include "services/shell/public/cpp/connection.h"
@@ skipping 54 matching lines @@
    private:
     Identity target_;
     mojom::ServicePtr service_;
     mojom::PIDReceiverRequest pid_receiver_request_;
     InterfaceRegistry* exposed_interfaces_ = nullptr;
     InterfaceProvider* remote_interfaces_ = nullptr;
 
     DISALLOW_COPY_AND_ASSIGN(ConnectParams);
   };
 
-  // Creates a new Connector instance and fills in |*request| with a request
-  // for the other end the Connector's interface.
-  static std::unique_ptr<Connector> Create(mojom::ConnectorRequest* request);
-
   // Requests a new connection to an application. Returns a pointer to the
   // connection if the connection is permitted by this application's delegate,
   // or nullptr otherwise. Caller takes ownership.
   // Once this method is called, this object is bound to the thread on which the
   // call took place. To pass to another thread, call Clone() and pass the
   // result.
   virtual std::unique_ptr<Connection> Connect(const std::string& name) = 0;
   virtual std::unique_ptr<Connection> Connect(ConnectParams* params) = 0;
 
   // Connect to application identified by |request->name| and connect to the
@@ skipping 20 matching lines @@
 
   // Creates a new instance of this class which may be passed to another thread.
   // The returned object may be passed multiple times until Connect() is called,
   // at which point this method must be called again to pass again.
   virtual std::unique_ptr<Connector> Clone() = 0;
 };
 
 }  // namespace shell
 
 #endif  // SERVICES_SHELL_PUBLIC_CPP_CONNECTOR_H_