Make async waiter explicit MojoGLES2CreateContext param

mojo/public/gles2/gles2_private.cc

Index: mojo/public/gles2/gles2_private.cc
diff --git a/mojo/public/gles2/gles2_private.cc b/mojo/public/gles2/gles2_private.cc
index c82e9deede9fef3236acb3c0794b93673a063964..de8dd344a1aa7e4d87ab944e9ea5142b22c34f8b 100644
--- a/mojo/public/gles2/gles2_private.cc
+++ b/mojo/public/gles2/gles2_private.cc
@@ -15,23 +15,15 @@ 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) {
+    void* closure,
+    const MojoAsyncWaiter* async_waiter) {
   return g_gles2_support->CreateContext(mojo::MessagePipeHandle(handle),
                                         lost_callback,
-                                        closure);
+                                        closure,
+                                        async_waiter);
 }
 
 void MojoGLES2DestroyContext(MojoGLES2Context context) {