shill: Update to build against libchrome-271506.

BUG=chromium:375032
TEST=`USE='cellular gdmwimax wimax vpn' FEATURES=test emerge-$BOARD platform2`

Change-Id: Ib7c8b2b290caa261cbb61d30cf8a361a1e3345e1
Reviewed-on: https://chromium-review.googlesource.com/201211
Tested-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Ben Chan <benchan@chromium.org>
Reviewed-by: Paul Stewart <pstew@chromium.org>
diff --git a/dhcp_config_unittest.cc b/dhcp_config_unittest.cc
index f3aa275..8da3339 100644
--- a/dhcp_config_unittest.cc
+++ b/dhcp_config_unittest.cc
@@ -157,8 +157,8 @@
   EXPECT_TRUE(base::CreateDirectory(varlib));
   lease_file_ =
       varlib.Append(base::StringPrintf("dhcpcd-%s.lease", kDeviceName));
-  EXPECT_EQ(0, file_util::WriteFile(pid_file_, "", 0));
-  EXPECT_EQ(0, file_util::WriteFile(lease_file_, "", 0));
+  EXPECT_EQ(0, base::WriteFile(pid_file_, "", 0));
+  EXPECT_EQ(0, base::WriteFile(lease_file_, "", 0));
   EXPECT_TRUE(base::PathExists(pid_file_));
   EXPECT_TRUE(base::PathExists(lease_file_));