Revert of mojo: Convert gles2 to the new thunking system

mojo/public/platform/native/gles2_thunks.cc

-// 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.
-
-#include "mojo/public/platform/native/gles2_thunks.h"
-
-#include <assert.h>
-
-#include "mojo/public/platform/native/thunk_export.h"
-
-extern "C" {
-
-static MojoGLES2ControlThunks g_control_thunks = {0};
-static MojoGLES2ImplThunks g_impl_thunks = {0};
-
-void MojoGLES2Initialize(const MojoAsyncWaiter* async_waiter) {
-  assert(g_control_thunks.GLES2Initialize);
-  g_control_thunks.GLES2Initialize(async_waiter);
-}
-
-void MojoGLES2Terminate() {
-  assert(g_control_thunks.GLES2Terminate);
-  g_control_thunks.GLES2Terminate();
-}
-
-MojoGLES2Context MojoGLES2CreateContext(
-    MojoHandle handle,
-    MojoGLES2ContextLost lost_callback,
-    void* closure) {
-  assert(g_control_thunks.GLES2CreateContext);
-  return g_control_thunks.GLES2CreateContext(handle, lost_callback, closure);
-}
-
-void MojoGLES2DestroyContext(MojoGLES2Context context) {
-  assert(g_control_thunks.GLES2DestroyContext);
-  g_control_thunks.GLES2DestroyContext(context);
-}
-
-void MojoGLES2MakeCurrent(MojoGLES2Context context) {
-  assert(g_control_thunks.GLES2MakeCurrent);
-  g_control_thunks.GLES2MakeCurrent(context);
-}
-
-void MojoGLES2SwapBuffers() {
-  assert(g_control_thunks.GLES2SwapBuffers);
-  g_control_thunks.GLES2SwapBuffers();
-}
-
-void* MojoGLES2GetGLES2Interface(MojoGLES2Context context) {
-  assert(g_control_thunks.GLES2GetGLES2Interface);
-  return g_control_thunks.GLES2GetGLES2Interface(context);
-}
-
-void* MojoGLES2GetContextSupport(MojoGLES2Context context) {
-  assert(g_control_thunks.GLES2GetContextSupport);
-  return g_control_thunks.GLES2GetContextSupport(context);
-}
-
-#define VISIT_GL_CALL(Function, ReturnType, PARAMETERS, ARGUMENTS) \
-  ReturnType gl##Function PARAMETERS {                             \
-    assert(g_impl_thunks.Function);                                \
-    return g_impl_thunks.Function ARGUMENTS;                       \
-  }
-#include "mojo/public/c/gles2/gles2_call_visitor_autogen.h"
-#undef VISIT_GL_CALL
-
-extern "C" THUNK_EXPORT size_t MojoSetGLES2ControlThunks(
-    const MojoGLES2ControlThunks* gles2_control_thunks) {
-  if (gles2_control_thunks->size >= sizeof(g_control_thunks))
-    g_control_thunks = *gles2_control_thunks;
-  return sizeof(g_control_thunks);
-}
-
-extern "C" THUNK_EXPORT size_t MojoSetGLES2ImplThunks(
-    const MojoGLES2ImplThunks* gles2_impl_thunks) {
-  if (gles2_impl_thunks->size >= sizeof(g_impl_thunks))
-    g_impl_thunks = *gles2_impl_thunks;
-  return sizeof(g_impl_thunks);
-}
-
-}  // extern "C"