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

mojo/public/platform/native/gles2_impl_ext_debug_marker_thunks.h

-// Copyright 2014 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.
-
-// This file is auto-generated from
-// gpu/command_buffer/build_gles2_cmd_buffer.py
-// It's formatted by clang-format using chromium coding style:
-//    clang-format -i -style=chromium filename
-// DO NOT EDIT!
-
-#ifndef MOJO_PUBLIC_PLATFORM_NATIVE_GLES2_IMPL_EXT_DEBUG_MARKER_THUNKS_H_
-#define MOJO_PUBLIC_PLATFORM_NATIVE_GLES2_IMPL_EXT_DEBUG_MARKER_THUNKS_H_
-
-#include <stddef.h>
-
-#define GL_GLEXT_PROTOTYPES
-#include <GLES2/gl2extmojo.h>
-
-// Specifies the frozen API for the EXT_debug_marker extension.
-#pragma pack(push, 8)
-struct MojoGLES2ImplEXTDebugMarkerThunks {
-  size_t size;  // Should be set to sizeof(*this).
-
-#define VISIT_GL_CALL(Function, ReturnType, PARAMETERS, ARGUMENTS) \
-  ReturnType(GL_APIENTRY* Function) PARAMETERS;
-#include "mojo/public/platform/native/gles2/call_visitor_ext_debug_marker_autogen.h"
-#undef VISIT_GL_CALL
-};
-#pragma pack(pop)
-
-#ifdef __cplusplus
-// Intended to be called from the embedder to get the embedder's implementation
-// of ext_debug_marker.
-inline MojoGLES2ImplEXTDebugMarkerThunks
-MojoMakeGLES2ImplEXTDebugMarkerThunks() {
-  MojoGLES2ImplEXTDebugMarkerThunks gles2_impl_ext_debug_marker_thunks = {
-      sizeof(MojoGLES2ImplEXTDebugMarkerThunks),
-#define VISIT_GL_CALL(Function, ReturnType, PARAMETERS, ARGUMENTS) gl##Function,
-#include "mojo/public/platform/native/gles2/call_visitor_ext_debug_marker_autogen.h"
-#undef VISIT_GL_CALL
-  };
-
-  return gles2_impl_ext_debug_marker_thunks;
-}
-#endif  // __cplusplus
-
-// Use this type for the function found by dynamically discovering it in
-// a DSO linked with mojo_system.
-// The contents of |gles2_impl_ext_debug_marker_thunks| are copied.
-typedef size_t (*MojoSetGLES2ImplEXTDebugMarkerThunksFn)(
-    const struct MojoGLES2ImplEXTDebugMarkerThunks* thunks);
-
-#endif  // MOJO_PUBLIC_PLATFORM_NATIVE_GLES2_IMPL_EXT_DEBUG_MARKER_THUNKS_H_