Mojo: Move mojo/public/system/core_cpp.h to mojo/cpp/public/system/core.h.

mojo/public/cpp/system/core.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_SYSTEM_CORE_CPP_H_
-#define MOJO_PUBLIC_SYSTEM_CORE_CPP_H_
+#ifndef MOJO_PUBLIC_CPP_SYSTEM_CORE_H_
+#define MOJO_PUBLIC_CPP_SYSTEM_CORE_H_
 
 #include <assert.h>
 #include <stddef.h>
 
 #include <limits>
 
 #include "mojo/public/c/system/core.h"
 #include "mojo/public/c/system/macros.h"
 #include "mojo/public/c/system/system_export.h"
 
@@ skipping 440 matching lines @@
   MojoResult result MOJO_ALLOW_UNUSED =
       CreateSharedBuffer(&options, num_bytes, &handle);
   assert(result == MOJO_RESULT_OK);
 }
 
 inline SharedBuffer::~SharedBuffer() {
 }
 
 }  // namespace mojo
 
-#endif  // MOJO_PUBLIC_SYSTEM_CORE_CPP_H_
+#endif  // MOJO_PUBLIC_CPP_SYSTEM_CORE_H_