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diff --git a/modules/brotli/include/brotli/types.h b/modules/brotli/include/brotli/types.h
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+++ b/modules/brotli/include/brotli/types.h
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+/* Copyright 2013 Google Inc. All Rights Reserved.
+
+   Distributed under MIT license.
+   See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
+*/
+
+/**
+ * @file
+ * Common types used in decoder and encoder API.
+ */
+
+#ifndef BROTLI_COMMON_TYPES_H_
+#define BROTLI_COMMON_TYPES_H_
+
+#include <stddef.h>  /* for size_t */
+
+#if defined(_MSC_VER) && (_MSC_VER < 1600)
+typedef __int8 int8_t;
+typedef unsigned __int8 uint8_t;
+typedef __int16 int16_t;
+typedef unsigned __int16 uint16_t;
+typedef __int32 int32_t;
+typedef unsigned __int32 uint32_t;
+typedef unsigned __int64 uint64_t;
+typedef __int64 int64_t;
+#else
+#include <stdint.h>
+#endif  /* defined(_MSC_VER) && (_MSC_VER < 1600) */
+
+/**
+ * A portable @c bool replacement.
+ *
+ * ::BROTLI_BOOL is a "documentation" type: actually it is @c int, but in API it
+ * denotes a type, whose only values are ::BROTLI_TRUE and ::BROTLI_FALSE.
+ *
+ * ::BROTLI_BOOL values passed to Brotli should either be ::BROTLI_TRUE or
+ * ::BROTLI_FALSE, or be a result of ::TO_BROTLI_BOOL macros.
+ *
+ * ::BROTLI_BOOL values returned by Brotli should not be tested for equality
+ * with @c true, @c false, ::BROTLI_TRUE, ::BROTLI_FALSE, but rather should be
+ * evaluated, for example: @code{.cpp}
+ * if (SomeBrotliFunction(encoder, BROTLI_TRUE) &&
+ *     !OtherBrotliFunction(decoder, BROTLI_FALSE)) {
+ *   bool x = !!YetAnotherBrotliFunction(encoder, TO_BROLTI_BOOL(2 * 2 == 4));
+ *   DoSomething(x);
+ * }
+ * @endcode
+ */
+#define BROTLI_BOOL int
+/** Portable @c true replacement. */
+#define BROTLI_TRUE 1
+/** Portable @c false replacement. */
+#define BROTLI_FALSE 0
+/** @c bool to ::BROTLI_BOOL conversion macros. */
+#define TO_BROTLI_BOOL(X) (!!(X) ? BROTLI_TRUE : BROTLI_FALSE)
+
+#define BROTLI_MAKE_UINT64_T(high, low) ((((uint64_t)(high)) << 32) | low)
+
+#define BROTLI_UINT32_MAX (~((uint32_t)0))
+#define BROTLI_SIZE_MAX (~((size_t)0))
+
+/**
+ * Allocating function pointer type.
+ *
+ * @param opaque custom memory manager handle provided by client
+ * @param size requested memory region size; can not be @c 0
+ * @returns @c 0 in the case of failure
+ * @returns a valid pointer to a memory region of at least @p size bytes
+ *          long otherwise
+ */
+typedef void* (*brotli_alloc_func)(void* opaque, size_t size);
+
+/**
+ * Deallocating function pointer type.
+ *
+ * This function @b SHOULD do nothing if @p address is @c 0.
+ *
+ * @param opaque custom memory manager handle provided by client
+ * @param address memory region pointer returned by ::brotli_alloc_func, or @c 0
+ */
+typedef void (*brotli_free_func)(void* opaque, void* address);
+
+#endif  /* BROTLI_COMMON_TYPES_H_ */