Added last focused window to notifyFocusChanged callback

Test: Builds and runs
Bug: 121122996
Change-Id: I322eb7ae9b9e7489a621e7505719b748add01e2d
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index 26f01b7..b385fe9 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -63,7 +63,7 @@
     virtual void notifyInputChannelBroken(const sp<IBinder>&) {
     }
 
-    virtual void notifyFocusChanged(const sp<IBinder>&) {
+    virtual void notifyFocusChanged(const sp<IBinder>&, const sp<IBinder>&) {
     }
 
     virtual void getDispatcherConfiguration(InputDispatcherConfiguration* outConfig) {