shill: Convert code to use the newest version of libchrome.

The biggest change is a switch from using the deprecated
Task and CallbackN mechanisms to using the new Callback
mechanism.

Note: Original CL was https://gerrit.chromium.org/gerrit/16156.
This is logically another patch to that CL, but since the
latter was already merged, and is considered closed by
Gerrit, it's necessary to create a new CL.

BUG=chromium-os:15330
TEST=Build shill and run it on a zgb with a modem. Build and
run unit tests.
CQ-DEPEND=I37628863370323d30cac493764ea28f8ffd42637

Change-Id: I3ae78a3aa44ec167b79f2170d07650ece888254f
Reviewed-on: https://gerrit.chromium.org/gerrit/18030
Reviewed-by: Eric Shienbrood <ers@chromium.org>
Tested-by: Eric Shienbrood <ers@chromium.org>
Commit-Ready: Eric Shienbrood <ers@chromium.org>
diff --git a/routing_table_unittest.cc b/routing_table_unittest.cc
index 6e36cb5..27faba4 100644
--- a/routing_table_unittest.cc
+++ b/routing_table_unittest.cc
@@ -6,7 +6,7 @@
 #include <linux/rtnetlink.h>
 
 #include <base/logging.h>
-#include <base/stl_util-inl.h>
+#include <base/stl_util.h>
 #include <gtest/gtest.h>
 #include <gmock/gmock.h>
 
@@ -18,6 +18,7 @@
 #include "shill/rtnl_handler.h"
 #include "shill/rtnl_message.h"
 
+using base::Callback;
 using testing::_;
 using testing::Invoke;
 using testing::Return;
@@ -30,7 +31,7 @@
  public:
   virtual IOHandler *CreateInputHandler(
       int /*fd*/,
-      Callback1<InputData*>::Type */*callback*/) {
+      const Callback<void(InputData*)> &/*callback*/) {
     return NULL;
   }
 };