Mojo: Move public/tests/test_{support,utils}.* to public/{c,cpp}/test_support.

mojo/public/tests/test_utils.h

-// Copyright 2013 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.
-
-#ifndef MOJO_PUBLIC_TESTS_TEST_UTILS_H_
-#define MOJO_PUBLIC_TESTS_TEST_UTILS_H_
-
-#include <string>
-
-#include "mojo/public/cpp/system/core.h"
-
-namespace mojo {
-namespace test {
-
-// Writes a message to |handle| with message data |text|. Returns true on
-// success.
-bool WriteTextMessage(const MessagePipeHandle& handle, const std::string& text);
-
-// Reads a message from |handle|, putting its contents into |*text|. Returns
-// true on success. (This blocks if necessary and will call |MojoReadMessage()|
-// multiple times, e.g., to query the size of the message.)
-bool ReadTextMessage(const MessagePipeHandle& handle, std::string* text);
-
-// Discards a message from |handle|. Returns true on success. (This does not
-// block. It will fail if no message is available to discard.)
-bool DiscardMessage(const MessagePipeHandle& handle);
-
-// Run |single_iteration| an appropriate number of times and report its
-// performance appropriately. (This actually runs |single_iteration| for a fixed
-// amount of time and reports the number of iterations per unit time.)
-typedef void (*PerfTestSingleIteration)(void* closure);
-void IterateAndReportPerf(const char* test_name,
-                          PerfTestSingleIteration single_iteration,
-                          void* closure);
-
-}  // namespace test
-}  // namespace mojo
-
-#endif  // MOJO_PUBLIC_TESTS_TEST_UTILS_H_