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

mojo/public/c/include/MGL/mgl.h

-// 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.
-
-// Note: This header should be compilable as C.
-
-#ifndef MOJO_PUBLIC_C_INCLUDE_MGL_MGL_H_
-#define MOJO_PUBLIC_C_INCLUDE_MGL_MGL_H_
-
-#include <MGL/mgl_types.h>
-#include <mojo/macros.h>
-#include <mojo/system/handle.h>
-#include <stdint.h>
-
-MOJO_BEGIN_EXTERN_C
-
-typedef uint32_t MGLOpenGLAPIVersion;
-
-// OpenGL ES 2.0
-#define MGL_API_VERSION_GLES2 ((MGLOpenGLAPIVersion)1)
-// OpenGL ES 3.0
-#define MGL_API_VERSION_GLES3 ((MGLOpenGLAPIVersion)2)
-// OpenGL ES 3.1
-#define MGL_API_VERSION_GLES31 ((MGLOpenGLAPIVersion)3)
-
-#define MGL_NO_CONTEXT ((MGLContext)0)
-
-struct MojoAsyncWaiter;
-
-// Creates a context at the given API version or returns MGL_NO_CONTEXT.
-// |command_buffer_handle| must be a command buffer message pipe handle from
-// the Gpu service or another source. The callee takes ownership of this
-// handle.
-// |share_group| specifies the share group to create this context in.
-// If this is MGL_NO_CONTEXT a new share group will be created for this context.
-// |lost_callback|, if not null, will be invoked when the context is lost.
-// |async_waiter| must be a pointer to a MojoAsyncWaiter implementation that is
-// usable from any thread the returned MGLContext will be used from
-// for as long as the context exists.
-MGLContext MGLCreateContext(MGLOpenGLAPIVersion version,
-                            MojoHandle command_buffer_handle,
-                            MGLContext share_group,
-                            MGLContextLostCallback lost_callback,
-                            void* lost_callback_closure,
-                            const struct MojoAsyncWaiter* async_waiter);
-void MGLDestroyContext(MGLContext context);
-
-// Makes |context| the current MGLContext for the calling thread. Calling with
-// MGL_NO_CONTEXT clears the current context.
-void MGLMakeCurrent(MGLContext context);
-
-// Returns the currently bound context for the calling thread or MGL_NO_CONTEXT
-// if there is none.
-MGLContext MGLGetCurrentContext(void);
-
-// Returns GL function usable in any context that advertise the corresponding
-// extension in their GL_EXTENSIONS string, or null for functions that the
-// implementation does not support. The implementation only advertises GL
-// functions.
-// |name| is the name of the GL function.
-MGLMustCastToProperFunctionPointerType MGLGetProcAddress(const char* name);
-
-MOJO_END_EXTERN_C
-
-#endif  // MOJO_PUBLIC_C_INCLUDE_MGL_MGL_H_