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

mojo/common/handle_watcher_unittest.cc

 // 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.
 
 #include "mojo/common/handle_watcher.h"
 
 #include <string>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/run_loop.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "mojo/common/time_helper.h"
 #include "mojo/public/cpp/system/core.h"
-#include "mojo/public/tests/test_utils.h"
+#include "mojo/public/cpp/test_support/test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
 namespace common {
 namespace test {
 
 void RunUntilIdle() {
   base::RunLoop run_loop;
   run_loop.RunUntilIdle();
 }
@@ skipping 275 matching lines @@
                                                callback_helper.GetCallback()));
   EXPECT_TRUE(mojo::test::WriteTextMessage(test_pipe.handle0.get(),
                                            std::string()));
   callback_helper.RunUntilGotCallback();
   EXPECT_TRUE(callback_helper.got_callback());
 }
 
 }  // namespace test
 }  // namespace common
 }  // namespace mojo