Remove some InterfacePtr<> methods which directly deal with message pipe handles.

services/dart/content_handler_app_service_connector.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 "services/dart/content_handler_app_service_connector.h"
 
 #include "base/location.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
 #include "mojo/services/network/public/interfaces/network_service.mojom.h"
 
@@ skipping 35 matching lines @@
     case mojo::dart::DartControllerServiceConnector::kNetworkServiceId: {
       std::string application_name = "mojo:network_service";
       // Construct proxy.
       mojo::NetworkServicePtr interface_ptr;
       runner_->PostTask(FROM_HERE, base::Bind(
           &ContentHandlerAppServiceConnector::Connect<mojo::NetworkService>,
           weak_ptr_factory_.GetWeakPtr(),
           application_name,
           base::Passed(GetProxy(&interface_ptr))));
       // Return proxy end of pipe to caller.
-      return interface_ptr.PassMessagePipe().release().value();
+      return interface_ptr.PassInterface().PassHandle().release().value();
     }
     break;
     default:
       return MOJO_HANDLE_INVALID;
     break;
   }
 }
 
 }  // namespace dart