Mojo: Add static factory functions to MessagePipe.

mojo/system/message_pipe.cc

 // Copyright 2013 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/system/message_pipe.h"
 
 #include "base/logging.h"
 #include "mojo/system/channel.h"
 #include "mojo/system/local_message_pipe_endpoint.h"
 #include "mojo/system/message_in_transit.h"
 #include "mojo/system/message_pipe_dispatcher.h"
 #include "mojo/system/message_pipe_endpoint.h"
 #include "mojo/system/proxy_message_pipe_endpoint.h"
 
 namespace mojo {
 namespace system {
 
 MessagePipe::MessagePipe(scoped_ptr<MessagePipeEndpoint> endpoint0,
                          scoped_ptr<MessagePipeEndpoint> endpoint1) {
   endpoints_[0].reset(endpoint0.release());
   endpoints_[1].reset(endpoint1.release());
 }
 
-MessagePipe::MessagePipe() {
-  endpoints_[0].reset(new LocalMessagePipeEndpoint());
-  endpoints_[1].reset(new LocalMessagePipeEndpoint());
+// static
+MessagePipe* MessagePipe::CreateLocalLocal() {
+  return new MessagePipe(
+      scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint),
+      scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint));
 }
 
 // static
+MessagePipe* MessagePipe::CreateLocalProxy() {
+  return new MessagePipe(
+      scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint),
+      scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint));
+}
+
+// static
+MessagePipe* MessagePipe::CreateProxyLocal() {
+  return new MessagePipe(
+      scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint),
+      scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint));
+}
+
+// static
 unsigned MessagePipe::GetPeerPort(unsigned port) {
   DCHECK(port == 0 || port == 1);
   return port ^ 1;
 }
 
 MessagePipeEndpoint::Type MessagePipe::GetType(unsigned port) {
   DCHECK(port == 0 || port == 1);
   base::AutoLock locker(lock_);
   DCHECK(endpoints_[port]);
 
@@ skipping 247 matching lines @@
 MojoResult MessagePipe::HandleControlMessage(
     unsigned /*port*/,
     scoped_ptr<MessageInTransit> message) {
   LOG(WARNING) << "Unrecognized MessagePipe control message subtype "
                << message->subtype();
   return MOJO_RESULT_UNKNOWN;
 }
 
 }  // namespace system
 }  // namespace mojo