Replace is_interactive with interactive for consistency in the code.

Bug: none
Test: unittests
Change-Id: I8c98860cfeadb52c7f8e4931d2ad154ae4211d47
diff --git a/update_manager/update_manager_unittest.cc b/update_manager/update_manager_unittest.cc
index c2766ea..125a60c 100644
--- a/update_manager/update_manager_unittest.cc
+++ b/update_manager/update_manager_unittest.cc
@@ -189,7 +189,7 @@
 
 TEST_F(UmUpdateManagerTest, PolicyRequestCallUpdateCanStart) {
   UpdateState update_state = UpdateState();
-  update_state.is_interactive = true;
+  update_state.interactive = true;
   update_state.is_delta_payload = false;
   update_state.first_seen = FixedTime();
   update_state.num_checks = 1;