Unify var tracking between webkit and the proxy.

webkit/plugins/ppapi/resource_tracker_unittest.cc

Index: webkit/plugins/ppapi/resource_tracker_unittest.cc
===================================================================
--- webkit/plugins/ppapi/resource_tracker_unittest.cc	(revision 96002)
+++ webkit/plugins/ppapi/resource_tracker_unittest.cc	(working copy)
@@ -216,14 +216,15 @@
   }
 
   // Remove both of the refs we made above.
-  tracker().UnrefVar(static_cast<int32_t>(pp_object2.value.as_id));
-  tracker().UnrefVar(static_cast<int32_t>(pp_object1.value.as_id));
+  ::ppapi::VarTracker* var_tracker = tracker().GetVarTracker();
+  var_tracker->ReleaseVar(static_cast<int32_t>(pp_object2.value.as_id));
+  var_tracker->ReleaseVar(static_cast<int32_t>(pp_object1.value.as_id));
 
   // Releasing the resource should free the internal ref, and so making a new
   // one now should generate a new ID.
   PP_Var pp_object3 = NPObjectToPPVar(instance(), npobject.get());
   EXPECT_NE(pp_object1.value.as_id, pp_object3.value.as_id);
-  tracker().UnrefVar(static_cast<int32_t>(pp_object3.value.as_id));
+  var_tracker->ReleaseVar(static_cast<int32_t>(pp_object3.value.as_id));
 }
 
 }  // namespace ppapi