Make header include guards great again

runtime/vm/dart_api_state.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-#ifndef VM_DART_API_STATE_H_
-#define VM_DART_API_STATE_H_
+#ifndef RUNTIME_VM_DART_API_STATE_H_
+#define RUNTIME_VM_DART_API_STATE_H_
 
 #include "include/dart_api.h"
 
 #include "platform/utils.h"
 #include "vm/bitfield.h"
 #include "vm/dart_api_impl.h"
 #include "vm/flags.h"
 #include "vm/growable_array.h"
 #include "vm/handles.h"
 #include "vm/object.h"
@@ skipping 802 matching lines @@
   ref->set_peer(peer);
   ref->set_callback(callback);
   ref->set_is_queued_for_finalization(false);
   // This may trigger GC, so it must be called last.
   ref->SetExternalSize(external_size, isolate);
   return ref;
 }
 
 }  // namespace dart
 
-#endif  // VM_DART_API_STATE_H_
+#endif  // RUNTIME_VM_DART_API_STATE_H_