Initial import.

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diff --git a/test/core/util/slice_splitter.h b/test/core/util/slice_splitter.h
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+/*
+ *
+ * Copyright 2014, 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_TEST_UTIL_SLICE_SPLITTER_H__
+#define __GRPC_TEST_UTIL_SLICE_SPLITTER_H__
+
+/* utility function to split/merge slices together to help create test
+   cases */
+
+#include <grpc/support/slice.h>
+#include <grpc/support/slice_buffer.h>
+
+typedef enum {
+  /* merge all input slices into a single slice */
+  GRPC_SLICE_SPLIT_MERGE_ALL,
+  /* leave slices as is */
+  GRPC_SLICE_SPLIT_IDENTITY,
+  /* split slices into one byte chunks */
+  GRPC_SLICE_SPLIT_ONE_BYTE
+} grpc_slice_split_mode;
+
+/* allocates *dst_slices; caller must unref all slices in dst_slices then free
+   it */
+void grpc_split_slices(grpc_slice_split_mode mode, gpr_slice *src_slices,
+                       size_t src_slice_count, gpr_slice **dst_slices,
+                       size_t *dst_slice_count);
+
+void grpc_split_slices_to_buffer(grpc_slice_split_mode mode,
+                                 gpr_slice *src_slices, size_t src_slice_count,
+                                 gpr_slice_buffer *dst);
+void grpc_split_slice_buffer(grpc_slice_split_mode mode, gpr_slice_buffer *src,
+                             gpr_slice_buffer *dst);
+
+gpr_slice grpc_slice_merge(gpr_slice *slices, size_t nslices);
+
+const char *grpc_slice_split_mode_name(grpc_slice_split_mode mode);
+
+#endif  /* __GRPC_TEST_UTIL_SLICE_SPLITTER_H__ */