net: fix windows build

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/7429049

src/pkg/net/protoconn_test.go

@@ -8,12 +8,25 @@
 package net
 
 import (
+	"io/ioutil"
 	"os"
 	"runtime"
 	"testing"
 	"time"
 )
 
+// testUnixAddr uses ioutil.TempFile to get a name that is unique.
+func testUnixAddr() string {
+	f, err := ioutil.TempFile("", "nettest")
+	if err != nil {
+		panic(err)
+	}
+	addr := f.Name()
+	f.Close()
+	os.Remove(addr)
+	return addr
+}
+
 var condFatalf = func() func(*testing.T, string, ...interface{}) {
 	// A few APIs are not implemented yet on both Plan 9 and Windows.
 	switch runtime.GOOS {

src/pkg/net/unix_test.go

@@ -8,7 +8,6 @@ package net
 
 import (
 	"bytes"
-	"io/ioutil"
 	"os"
 	"reflect"
 	"runtime"
@@ -17,18 +16,6 @@ import (
 	"time"
 )
 
-// testUnixAddr uses ioutil.TempFile to get a name that is unique.
-func testUnixAddr() string {
-	f, err := ioutil.TempFile("", "nettest")
-	if err != nil {
-		panic(err)
-	}
-	addr := f.Name()
-	f.Close()
-	os.Remove(addr)
-	return addr
-}
-
 func TestReadUnixgramWithUnnamedSocket(t *testing.T) {
 	addr := testUnixAddr()
 	la, err := ResolveUnixAddr("unixgram", addr)