Rename the copyright authors from NXT to Dawn
diff --git a/src/backend/CommandBufferStateTracker.h b/src/backend/CommandBufferStateTracker.h
index b097ad9..45079e2 100644
--- a/src/backend/CommandBufferStateTracker.h
+++ b/src/backend/CommandBufferStateTracker.h
@@ -1,4 +1,4 @@
-// Copyright 2017 The NXT Authors
+// Copyright 2017 The Dawn Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.