Revert of mojo: Convert gles2 to the new thunking system

mojo/public/gles2/gles2_private.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/gles2/gles2_private.h"
+
+#include <assert.h>
+#include <stddef.h>
+
+#include "mojo/public/c/gles2/gles2.h"
+#include "mojo/public/gles2/gles2_interface.h"
+
+static mojo::GLES2Support* g_gles2_support = NULL;
+static mojo::GLES2Interface* g_gles2_interface = NULL;
+
+extern "C" {
+
+void MojoGLES2Initialize(const MojoAsyncWaiter* async_waiter) {
+  assert(g_gles2_support);
+  return g_gles2_support->Initialize(async_waiter);
+}
+
+void MojoGLES2Terminate() {
+  assert(g_gles2_support);
+  return g_gles2_support->Terminate();
+}
+
+MojoGLES2Context MojoGLES2CreateContext(
+    MojoHandle handle,
+    MojoGLES2ContextLost lost_callback,
+    void* closure) {
+  return g_gles2_support->CreateContext(mojo::MessagePipeHandle(handle),
+                                        lost_callback,
+                                        closure);
+}
+
+void MojoGLES2DestroyContext(MojoGLES2Context context) {
+  return g_gles2_support->DestroyContext(context);
+}
+
+void MojoGLES2MakeCurrent(MojoGLES2Context context) {
+  assert(g_gles2_support);
+  g_gles2_support->MakeCurrent(context);
+  g_gles2_interface = g_gles2_support->GetGLES2InterfaceForCurrentContext();
+}
+
+void MojoGLES2SwapBuffers() {
+  assert(g_gles2_support);
+  return g_gles2_support->SwapBuffers();
+}
+
+void* MojoGLES2GetGLES2Interface(MojoGLES2Context context) {
+  assert(g_gles2_support);
+  return g_gles2_support->GetGLES2Interface(context);
+}
+
+void* MojoGLES2GetContextSupport(MojoGLES2Context context) {
+  assert(g_gles2_support);
+  return g_gles2_support->GetContextSupport(context);
+}
+
+#define VISIT_GL_CALL(Function, ReturnType, PARAMETERS, ARGUMENTS) \
+  ReturnType gl##Function PARAMETERS {                             \
+    return g_gles2_interface->Function ARGUMENTS;                  \
+  }
+#include "mojo/public/c/gles2/gles2_call_visitor_autogen.h"
+#undef VISIT_GL_CALL
+
+}  // extern "C"
+
+namespace mojo {
+
+GLES2Support::~GLES2Support() {}
+
+void GLES2Support::Init(GLES2Support* gles2_support) {
+  assert(!g_gles2_support);
+  g_gles2_support = gles2_support;
+}
+
+}  // namespace mojo