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diff --git a/gfx/angle/checkout/src/compiler/translator/tree_ops/PruneNoOps.h b/gfx/angle/checkout/src/compiler/translator/tree_ops/PruneNoOps.h
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index 0000000000..a73cb71d08
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+++ b/gfx/angle/checkout/src/compiler/translator/tree_ops/PruneNoOps.h
@@ -0,0 +1,29 @@
+//
+// Copyright 2002 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// PruneNoOps.h: The PruneNoOps function prunes:
+//   1. Empty declarations "int;". Empty declarators will be pruned as well, so for example:
+//        int , a;
+//      is turned into
+//        int a;
+//   2. Literal statements: "1.0;". The ESSL output doesn't define a default precision for float,
+//      so float literal statements would end up with no precision which is invalid ESSL.
+//   3. Statements after discard, return, break and continue.
+
+#ifndef COMPILER_TRANSLATOR_TREEOPS_PRUNENOOPS_H_
+#define COMPILER_TRANSLATOR_TREEOPS_PRUNENOOPS_H_
+
+#include "common/angleutils.h"
+
+namespace sh
+{
+class TCompiler;
+class TIntermBlock;
+class TSymbolTable;
+
+[[nodiscard]] bool PruneNoOps(TCompiler *compiler, TIntermBlock *root, TSymbolTable *symbolTable);
+}  // namespace sh
+
+#endif  // COMPILER_TRANSLATOR_TREEOPS_PRUNENOOPS_H_