chore: import upstream snapshot with attribution

test/memory_unittest_mac.h

@@ -0,0 +1,32 @@
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This file contains helpers for the process_util_unittest to allow it to fully
+// test the Mac code.
+
+#ifndef BUTIL_PROCESS_MEMORY_UNITTEST_MAC_H_
+#define BUTIL_PROCESS_MEMORY_UNITTEST_MAC_H_
+
+#include "butil/basictypes.h"
+
+namespace butil {
+
+// Allocates memory via system allocators. Alas, they take a _signed_ size for
+// allocation.
+void* AllocateViaCFAllocatorSystemDefault(ssize_t size);
+void* AllocateViaCFAllocatorMalloc(ssize_t size);
+void* AllocateViaCFAllocatorMallocZone(ssize_t size);
+
+#if !defined(ARCH_CPU_64_BITS)
+// See process_util_unittest_mac.mm for an explanation of why this function
+// isn't implemented for the 64-bit environment.
+
+// Allocates a huge Objective C object.
+void* AllocatePsychoticallyBigObjCObject();
+
+#endif  // !ARCH_CPU_64_BITS
+
+}  // namespace butil
+
+#endif  // BUTIL_PROCESS_MEMORY_UNITTEST_MAC_H_