[Mojo] Remove dependency between mojo/public and gpu

mojo/public/bindings/gles2_client/gles2_client_impl.h

-// Copyright 2013 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_BINDINGS_GLES2_CLIENT_GLES2_CLIENT_IMPL_H_
-#define MOJO_PUBLIC_BINDINGS_GLES2_CLIENT_GLES2_CLIENT_IMPL_H_
-
-#include "mojo/public/bindings/lib/remote_ptr.h"
-#include "mojom/gles2.h"
-
-namespace mojo {
-class GLES2ClientImpl;
-
-class GLES2Delegate {
- public:
-  virtual ~GLES2Delegate();
-  virtual void DidCreateContext(
-      GLES2ClientImpl* gl, uint32_t width, uint32_t height);
-  virtual void ContextLost(GLES2ClientImpl* gl);
-};
-
-class GLES2ClientImpl : public GLES2ClientStub {
- public:
-  explicit GLES2ClientImpl(GLES2Delegate* delegate,
-                           ScopedMessagePipeHandle gl);
-  virtual ~GLES2ClientImpl();
-
-  static void Initialize();
-  static void Terminate();
-
-  void SwapBuffers();
-
- private:
-  virtual void DidCreateContext(
-    uint64_t encoded, uint32_t width, uint32_t height) MOJO_OVERRIDE;
-  virtual void ContextLost() MOJO_OVERRIDE;
-
-  GLES2Delegate* delegate_;
-  RemotePtr<GLES2> gl_;
-};
-
-}  // mojo
-
-#endif  // MOJO_PUBLIC_BINDINGS_GLES2_CLIENT_GLES2_CLIENT_IMPL_H_