Add tests for verifying network availability on activity start.

Bug: 27803922
Test: runtest -c com.android.server.net.ConnOnActivityStartTest frameworks-services
Change-Id: I771e1fd9edbe14f1ff7a7a84c3896af6dd6f20a0
diff --git a/services/tests/servicestests/Android.mk b/services/tests/servicestests/Android.mk
index bb4507d..d47a67c 100644
--- a/services/tests/servicestests/Android.mk
+++ b/services/tests/servicestests/Android.mk
@@ -27,6 +27,10 @@
     ShortcutManagerTestUtils \
     truth-prebuilt
 
+LOCAL_AIDL_INCLUDES := $(LOCAL_PATH)/aidl
+
+LOCAL_SRC_FILES += aidl/com/android/servicestests/aidl/INetworkStateObserver.aidl
+
 LOCAL_JAVA_LIBRARIES := android.test.runner
 
 LOCAL_PACKAGE_NAME := FrameworksServicesTests