[Mojo] Remove dependency between mojo/public and gpu

mojo/examples/sample_app/sample_app.cc

 // 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.
 
 #include <stdio.h>
 #include <string>
 
 #include "base/message_loop/message_loop.h"
 #include "mojo/common/bindings_support_impl.h"
 #include "mojo/examples/sample_app/native_viewport_client_impl.h"
-#include "mojo/public/bindings/gles2_client/gles2_client_impl.h"
 #include "mojo/public/bindings/lib/bindings_support.h"
+#include "mojo/public/gles2/gles2.h"
 #include "mojo/public/system/core.h"
 #include "mojo/public/system/macros.h"
 
 #if defined(WIN32)
 #if !defined(CDECL)
 #define CDECL __cdecl
 #endif
 #define SAMPLE_APP_EXPORT __declspec(dllexport)
 #else
 #define CDECL
@@ skipping 10 matching lines @@
   base::MessageLoop::current()->Run();
 }
 
 }  // namespace examples
 }  // namespace mojo
 
 extern "C" SAMPLE_APP_EXPORT MojoResult CDECL MojoMain(MojoHandle pipe) {
   base::MessageLoop loop;
   mojo::common::BindingsSupportImpl bindings_support;
   mojo::BindingsSupport::Set(&bindings_support);
-  mojo::GLES2ClientImpl::Initialize();
+  MojoGLES2Initialize();
 
   mojo::ScopedMessagePipeHandle scoped_handle;
   scoped_handle.reset(mojo::MessagePipeHandle(pipe));
   mojo::examples::Start(scoped_handle.Pass());
 
-  mojo::GLES2ClientImpl::Terminate();
+  MojoGLES2Terminate();
   mojo::BindingsSupport::Set(NULL);
   return MOJO_RESULT_OK;
 }