Refactoring: Make IPC::Channel::TakeClientFileDescriptor() a ScopedFD.

ipc/ipc_send_fds_test.cc

Index: ipc/ipc_send_fds_test.cc
diff --git a/ipc/ipc_send_fds_test.cc b/ipc/ipc_send_fds_test.cc
index fcba77f6229abe9d53b6fdc677daec8d3c29ed1a..3961fa16e52d73bf234d80ab6167b5c2cd7e5bdd 100644
--- a/ipc/ipc_send_fds_test.cc
+++ b/ipc/ipc_send_fds_test.cc
@@ -234,9 +234,8 @@ class PipeChannelHelper {
   void Init() {
     IPC::ChannelHandle in_handle("IN");
     in = IPC::Channel::CreateServer(in_handle, &null_listener_);
-    base::FileDescriptor out_fd(
-        in->TakeClientFileDescriptor(), false);
-    IPC::ChannelHandle out_handle("OUT", out_fd);
+    IPC::ChannelHandle out_handle(
+        "OUT", base::FileDescriptor(in->TakeClientFileDescriptor()));
     out = IPC::Channel::CreateClient(out_handle, &cb_listener_);
     // PostTask the connect calls to make sure the callbacks happens
     // on the right threads.