Make ipc_tests file structure a little saner and add an ipc_perftests target.

ipc/ipc_channel_unittest.h

Index: ipc/ipc_channel_unittest.h
diff --git a/ipc/ipc_channel_unittest.h b/ipc/ipc_channel_unittest.h
new file mode 100644
index 0000000000000000000000000000000000000000..c9eed3cc19ee66e1e5396179a3823f0828dcb820
--- /dev/null
+++ b/ipc/ipc_channel_unittest.h
@@ -0,0 +1,13 @@
+// Copyright (c) 2011 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 IPC_IPC_CHANNEL_UNITTEST_H_
+#define IPC_IPC_CHANNEL_UNITTEST_H_
+
+#include "ipc/ipc_test_base.h"
+
+class IPCChannelTest : public IPCTestBase {

[jam, 2013/01/09 21:56:53]

what's the point of this file? i.e. why can't whoever is deriving from this just
derive from IPCTestBase (other than IPCChannelTest cc file of course)

[viettrungluu, 2013/01/09 22:15:50]

ipc_send_fds_test.cc adds (POSIX-only) tests to IPCChannelTest.

Possibly, these tests should go in ipc_channel_posix_unittest.cc instead. But
that file defines an IPCChannelPosixTest that doesn't derive from IPCTestBase
(formerly known as IPCChannelTest). Agh.

Or maybe we should just put the tests in ipc_send_fds_test.cc into their own
(differently-named) test.

All things being equal, I'd prefer not to rename tests (because it messes up
test histories, etc.), but maybe that's the price of sanity.

+};
+
+#endif  // IPC_IPC_CHANNEL_UNITTEST_H_