Make async waiter explicit MojoGLES2CreateContext param

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;
+      void* closure,
+      const MojoAsyncWaiter* async_waiter) = 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_