Make the fuchsia mojo/public repo the source of truth.

mojo/public/go/bindings/interface.go

-// 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.
-
-package bindings
-
-import (
-        "fmt"
-        "mojo/public/go/system"
-)
-
-// MessagePipeHandleOwner owns a message pipe handle, it can only pass it
-// invalidating itself or close it.
-type MessagePipeHandleOwner struct {
-        handle system.MessagePipeHandle
-}
-
-// PassMessagePipe passes ownership of the underlying message pipe handle to
-// the newly created handle object, invalidating the underlying handle object
-// in the process.
-func (o *MessagePipeHandleOwner) PassMessagePipe() system.MessagePipeHandle {
-        if o.handle == nil {
-                return &InvalidHandle{}
-        }
-        return o.handle.ToUntypedHandle().ToMessagePipeHandle()
-}
-
-// Close closes the underlying handle.
-func (o *MessagePipeHandleOwner) Close() {
-        if o.handle != nil {
-                o.handle.Close()
-        }
-}
-
-// NewMessagePipeHandleOwner creates |MessagePipeHandleOwner| that owns the
-// provided message pipe handle.
-func NewMessagePipeHandleOwner(handle system.MessagePipeHandle) MessagePipeHandleOwner {
-        return MessagePipeHandleOwner{handle}
-}
-
-// InterfaceRequest represents a request from a remote client for an
-// implementation of mojo interface over a specified message pipe. The
-// implementor of the interface should remove the message pipe by calling
-// PassMessagePipe() and attach it to the implementation.
-type InterfaceRequest struct {
-        MessagePipeHandleOwner
-}
-
-// InterfacePointer owns a message pipe handle with an implementation of mojo
-// interface attached to the other end of the message pipe. The client of the
-// interface should remove the message pipe by calling PassMessagePipe() and
-// attach it to the proxy.
-type InterfacePointer struct {
-        MessagePipeHandleOwner
-}
-
-// CreateMessagePipeForInterface creates a message pipe with interface request
-// on one end and interface pointer on the other end. The interface request
-// should be attached to appropriate mojo interface implementation and
-// the interface pointer should be attached to mojo interface proxy.
-func CreateMessagePipeForMojoInterface() (InterfaceRequest, InterfacePointer) {
-        r, h0, h1 := system.GetCore().CreateMessagePipe(nil)
-        if r != system.MOJO_RESULT_OK {
-                panic(fmt.Sprintf("can't create a message pipe: %v", r))
-        }
-        return InterfaceRequest{MessagePipeHandleOwner{h0}}, InterfacePointer{MessagePipeHandleOwner{h1}}
-}