shill: wimax: Replace scoped_ptr with std::unique_ptr.

BUG=None
TEST=`USE='wimax' FEATURES=test emerge-$BOARD shill`

Change-Id: I585b0bd9c26bd7532f5af75a1f63369c84042705
Reviewed-on: https://chromium-review.googlesource.com/223722
Tested-by: Ben Chan <benchan@chromium.org>
Reviewed-by: Paul Stewart <pstew@chromium.org>
Reviewed-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Ben Chan <benchan@chromium.org>
diff --git a/wimax_provider_unittest.cc b/wimax_provider_unittest.cc
index cd43f79..d02f951 100644
--- a/wimax_provider_unittest.cc
+++ b/wimax_provider_unittest.cc
@@ -88,9 +88,9 @@
     return service->friendly_name();
   }
 
-  scoped_ptr<MockDBusServiceProxy> dbus_service_proxy_;
-  scoped_ptr<MockWiMaxManagerProxy> wimax_manager_proxy_;
-  scoped_ptr<MockWiMaxNetworkProxy> network_proxy_;
+  std::unique_ptr<MockDBusServiceProxy> dbus_service_proxy_;
+  std::unique_ptr<MockWiMaxManagerProxy> wimax_manager_proxy_;
+  std::unique_ptr<MockWiMaxNetworkProxy> network_proxy_;
   MockProxyFactory proxy_factory_;
   NiceMockControl control_;
   MockMetrics metrics_;