Revert of mojo: Convert gles2 to the new thunking system

mojo/public/gles2/gles2_private.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.
+
+#ifndef MOJO_PUBLIC_GLES2_GLES2_PRIVATE_H_
+#define MOJO_PUBLIC_GLES2_GLES2_PRIVATE_H_
+
+#include <stdint.h>
+
+#include "mojo/public/c/environment/async_waiter.h"
+#include "mojo/public/c/gles2/gles2_export.h"
+#include "mojo/public/c/gles2/gles2_types.h"
+#include "mojo/public/cpp/system/core.h"
+
+namespace mojo {
+class GLES2Interface;
+
+// Implementors of the GLES2 APIs can use this interface to install their
+// implementation into the mojo_gles2 dynamic library. Mojo clients should not
+// call these functions directly.
+class MOJO_GLES2_EXPORT GLES2Support {
+ public:
+  virtual ~GLES2Support();
+
+  static void Init(GLES2Support* gles2_support);
+
+  virtual void Initialize(const MojoAsyncWaiter* async_waiter) = 0;
+  virtual void Terminate() = 0;
+  virtual MojoGLES2Context CreateContext(
+      MessagePipeHandle handle,
+      MojoGLES2ContextLost lost_callback,
+      void* closure) = 0;
+  virtual void DestroyContext(MojoGLES2Context context) = 0;
+  virtual void MakeCurrent(MojoGLES2Context context) = 0;
+  virtual void SwapBuffers() = 0;
+  virtual void* GetGLES2Interface(MojoGLES2Context context) = 0;
+  virtual void* GetContextSupport(MojoGLES2Context context) = 0;
+  virtual GLES2Interface* GetGLES2InterfaceForCurrentContext() = 0;
+};
+
+}  // namespace mojo
+
+#endif  // MOJO_PUBLIC_GLES2_GLES2_PRIVATE_H_