Separates ipc code from common (http://crbug.com/16829)

ipc/ipc_switches.cc

Index: ipc/ipc_switches.cc
diff --git a/ipc/ipc_switches.cc b/ipc/ipc_switches.cc
new file mode 100644
index 0000000000000000000000000000000000000000..18f7c2736b3acf4f438fee4cbc9edc458fe09968
--- /dev/null
+++ b/ipc/ipc_switches.cc
@@ -0,0 +1,28 @@
+// Copyright (c) 2006-2009 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 "ipc/ipc_switches.h"
+
+#include "base/base_switches.h"
+
+namespace switches {
+
+// Can't find the switch you are looking for? try looking in
+// base/base_switches.cc instead.
+
+// On POSIX only: use FIFO for IPC channels so that "unrelated" process
+// can connect to a channel, provided it knows its name. For debugging purposes.
+const wchar_t kIPCUseFIFO[]                    = L"ipc-use-fifo";
+
+// The value of this switch tells the child process which
+// IPC channel the browser expects to use to communicate with it.
+const wchar_t kProcessChannelID[]              = L"channel";
+
+// Will add kDebugOnStart to every child processes. If a value is passed, it
+// will be used as a filter to determine if the child process should have the
+// kDebugOnStart flag passed on or not.
+const wchar_t kDebugChildren[]                 = L"debug-children";
+
+}  // namespace switches
+