Make header include guards great again

runtime/vm/atomic_win.h

 // Copyright (c) 2013, 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_ATOMIC_WIN_H_
-#define VM_ATOMIC_WIN_H_
+#ifndef RUNTIME_VM_ATOMIC_WIN_H_
+#define RUNTIME_VM_ATOMIC_WIN_H_
 
-#if !defined VM_ATOMIC_H_
+#if !defined RUNTIME_VM_ATOMIC_H_
 #error Do not include atomic_win.h directly. Use atomic.h instead.
 #endif
 
 #if !defined(TARGET_OS_WINDOWS)
 #error This file should only be included on Windows builds.
 #endif
 
 namespace dart {
 
 inline uintptr_t AtomicOperations::FetchAndIncrement(uintptr_t* p) {
@@ skipping 111 matching lines @@
                                  static_cast<LONG>(new_value),
                                  static_cast<LONG>(old_value)));
 #else
 #error Unsupported host architecture.
 #endif
 }
 #endif  // !defined(USING_SIMULATOR)
 
 }  // namespace dart
 
-#endif  // VM_ATOMIC_WIN_H_
+#endif  // RUNTIME_VM_ATOMIC_WIN_H_