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

mojo/public/go/system/system.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 system
-
-// This interface wraps the "raw" mojo system entry points. This has no
-// dependencies on other types in this package so it can be implemented
-// by code that doesn't depend on this package.
-type MojoSystem interface {
-        // Shared buffer
-        CreateSharedBuffer(flags uint32, numBytes uint64) (result uint32, handle uint32)
-        DuplicateBufferHandle(handle uint32, flags uint32) (result uint32, dupHandle uint32)
-        GetBufferInformation(handle uint32) (result uint32, flags uint32, numBytes uint64)
-        // After a successful MapBuffer call, the caller must pass the same slice value to UnmapBuffer to release
-        // the underlying memory segment.
-        MapBuffer(handle uint32, offset, numBytes uint64, flags uint32) (result uint32, buf []byte)
-        UnmapBuffer(buf []byte) (result uint32)
-
-        // Data pipe
-        CreateDataPipe(flags, elementNumBytes, capacityNumBytes uint32) (result uint32, producerHandle, consumerHandle uint32)
-        CreateDataPipeWithDefaultOptions() (result uint32, producerHandle, consumerHandle uint32)
-        WriteData(producerHandle uint32, buf []byte, flags uint32) (result uint32, bytesWritten uint32)
-        BeginWriteData(producerHandle uint32, flags uint32) (result uint32, buf []byte)
-        EndWriteData(producerHandle uint32, numBytesWritten uint32) (result uint32)
-
-        ReadData(consumerHandle, flags uint32) (result uint32, buf []byte)
-        BeginReadData(consumerHandle uint32, flags uint32) (result uint32, buf []byte)
-        EndReadData(consumerHandle uint32, numBytesRead uint32) (result uint32)
-
-        // Time
-        GetTimeTicksNow() (timestamp uint64)
-
-        // Close a handle
-        Close(handle uint32) (result uint32)
-
-        // Waiting
-        Wait(handle uint32, signals uint32, deadline uint64) (result uint32, satisfiedSignals, satisfiableSignals uint32)
-        WaitMany(handles []uint32, signals []uint32, deadline uint64) (result uint32, index int, satisfiedSignals, satisfiableSignals []uint32)
-
-        // Message pipe
-        CreateMessagePipe(flags uint32) (result uint32, handle0, handle1 uint32)
-        WriteMessage(handle uint32, bytes []byte, handles []uint32, flags uint32) (result uint32)
-        ReadMessage(handle uint32, flags uint32) (result uint32, buf []byte, handles []uint32)
-}
-
-var sysImpl MojoSystem