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diff --git a/include/grpc/slice.h b/include/grpc/slice.h
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+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_SLICE_H
+#define GRPC_SLICE_H
+
+#include <grpc/impl/codegen/slice.h>
+#include <grpc/support/sync.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Increment the refcount of s. Requires slice is initialized.
+   Returns s. */
+GPRAPI grpc_slice grpc_slice_ref(grpc_slice s);
+
+/* Decrement the ref count of s.  If the ref count of s reaches zero, all
+   slices sharing the ref count are destroyed, and considered no longer
+   initialized.  If s is ultimately derived from a call to grpc_slice_new(start,
+   len, dest) where dest!=NULL , then (*dest)(start) is called, else if s is
+   ultimately derived from a call to grpc_slice_new_with_len(start, len, dest)
+   where dest!=NULL , then (*dest)(start, len).  Requires s initialized.  */
+GPRAPI void grpc_slice_unref(grpc_slice s);
+
+/* Create a slice pointing at some data. Calls malloc to allocate a refcount
+   for the object, and arranges that destroy will be called with the pointer
+   passed in at destruction. */
+GPRAPI grpc_slice grpc_slice_new(void *p, size_t len, void (*destroy)(void *));
+
+/* Equivalent to grpc_slice_new, but with a separate pointer that is
+   passed to the destroy function.  This function can be useful when
+   the data is part of a larger structure that must be destroyed when
+   the data is no longer needed. */
+GPRAPI grpc_slice grpc_slice_new_with_user_data(void *p, size_t len,
+                                                void (*destroy)(void *),
+                                                void *user_data);
+
+/* Equivalent to grpc_slice_new, but with a two argument destroy function that
+   also takes the slice length. */
+GPRAPI grpc_slice grpc_slice_new_with_len(void *p, size_t len,
+                                          void (*destroy)(void *, size_t));
+
+/* Equivalent to grpc_slice_new(malloc(len), len, free), but saves one malloc()
+   call.
+   Aborts if malloc() fails. */
+GPRAPI grpc_slice grpc_slice_malloc(size_t length);
+
+/* Create a slice by copying a string.
+   Does not preserve null terminators.
+   Equivalent to:
+     size_t len = strlen(source);
+     grpc_slice slice = grpc_slice_malloc(len);
+     memcpy(slice->data, source, len); */
+GPRAPI grpc_slice grpc_slice_from_copied_string(const char *source);
+
+/* Create a slice by copying a buffer.
+   Equivalent to:
+     grpc_slice slice = grpc_slice_malloc(len);
+     memcpy(slice->data, source, len); */
+GPRAPI grpc_slice grpc_slice_from_copied_buffer(const char *source, size_t len);
+
+/* Create a slice pointing to constant memory */
+GPRAPI grpc_slice grpc_slice_from_static_string(const char *source);
+
+/* Return a result slice derived from s, which shares a ref count with s, where
+   result.data==s.data+begin, and result.length==end-begin.
+   The ref count of s is increased by one.
+   Requires s initialized, begin <= end, begin <= s.length, and
+   end <= source->length. */
+GPRAPI grpc_slice grpc_slice_sub(grpc_slice s, size_t begin, size_t end);
+
+/* The same as grpc_slice_sub, but without altering the ref count */
+GPRAPI grpc_slice grpc_slice_sub_no_ref(grpc_slice s, size_t begin, size_t end);
+
+/* Splits s into two: modifies s to be s[0:split], and returns a new slice,
+   sharing a refcount with s, that contains s[split:s.length].
+   Requires s intialized, split <= s.length */
+GPRAPI grpc_slice grpc_slice_split_tail(grpc_slice *s, size_t split);
+
+/* Splits s into two: modifies s to be s[split:s.length], and returns a new
+   slice, sharing a refcount with s, that contains s[0:split].
+   Requires s intialized, split <= s.length */
+GPRAPI grpc_slice grpc_slice_split_head(grpc_slice *s, size_t split);
+
+GPRAPI grpc_slice gpr_empty_slice(void);
+
+/* Returns <0 if a < b, ==0 if a == b, >0 if a > b
+   The order is arbitrary, and is not guaranteed to be stable across different
+   versions of the API. */
+GPRAPI int grpc_slice_cmp(grpc_slice a, grpc_slice b);
+GPRAPI int grpc_slice_str_cmp(grpc_slice a, const char *b);
+
+/* Do two slices point at the same memory, with the same length
+   If a or b is inlined, actually compares data */
+GPRAPI int grpc_slice_is_equivalent(grpc_slice a, grpc_slice b);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GRPC_SLICE_H */