Expose MGL interface through NaCl IRT

mojo/public/platform/nacl/mgl_irt.h

Index: mojo/public/platform/nacl/mgl_irt.h
diff --git a/mojo/public/platform/nacl/mgl_irt.h b/mojo/public/platform/nacl/mgl_irt.h
new file mode 100644
index 0000000000000000000000000000000000000000..f2bdb5c1f1dc4cbf22ccd7b78a671edf4e521d11
--- /dev/null
+++ b/mojo/public/platform/nacl/mgl_irt.h
@@ -0,0 +1,45 @@
+// 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.
+
+#ifndef MOJO_PUBLIC_PLATFORM_NACL_MGL_IRT_H_
+#define MOJO_PUBLIC_PLATFORM_NACL_MGL_IRT_H_
+
+#include "mojo/public/c/gpu/MGL/mgl.h"
+#include "mojo/public/c/gpu/MGL/mgl_onscreen.h"
+#include "mojo/public/c/gpu/MGL/mgl_signal_sync_point.h"
+
+#define NACL_IRT_MGL_v0_1 "nacl-irt-mgl-0.1"
+
+// See mojo/public/c/gpu/MGL/mgl.h for documentation.
+struct nacl_irt_mgl {
+  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);
+  void (*MGLMakeCurrent)(MGLContext context);
+  MGLContext (*MGLGetCurrentContext)(void);
+  MGLMustCastToProperFunctionPointerType (*MGLGetProcAddress)(const char* name);
+};
+
+#define NACL_IRT_MGL_ONSCREEN_v0_1 "nacl-irt-mgl-onscreen-0.1"
+
+// See mojo/public/c/gpu/MGL/mgl_onscreen.h for documentation.
+struct nacl_irt_mgl_onscreen {
+  void (*MGLResizeSurface)(uint32_t width, uint32_t height);
+  void (*MGLSwapBuffers)(void);
+};
+
+#define NACL_IRT_MGL_SIGNAL_SYNC_POINT_v0_1 "nacl-irt-mgl-signal-sync-point-0.1"
+
+// See mojo/public/c/gpu/MGL/mgl_signal_sync_point.h for documentation.
+struct nacl_irt_mgl_signal_sync_point {
+  void (*MGLSignalSyncPoint)(uint32_t sync_point,
+                             MGLSignalSyncPointCallback callback,
+                             void* closure);
+};
+
+#endif  // MOJO_PUBLIC_PLATFORM_NACL_MGL_IRT_H_