Make header include guards great again

runtime/bin/thread.h

Index: runtime/bin/thread.h
diff --git a/runtime/bin/thread.h b/runtime/bin/thread.h
index 37a4b9febfcb9268248995a12745e2c5e299db60..365cd952d9ac9fba7704cd0d65b76645714be2f7 100644
--- a/runtime/bin/thread.h
+++ b/runtime/bin/thread.h
@@ -2,8 +2,8 @@
 // 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 BIN_THREAD_H_
-#define BIN_THREAD_H_
+#ifndef RUNTIME_BIN_THREAD_H_
+#define RUNTIME_BIN_THREAD_H_
 
 #include "platform/globals.h"
 
@@ -114,4 +114,4 @@ class Monitor {
 }  // namespace dart
 
 
-#endif  // BIN_THREAD_H_
+#endif  // RUNTIME_BIN_THREAD_H_