NOT FOR REVIEW: Aura on Android

ui/events/BUILD.gn

Index: ui/events/BUILD.gn
diff --git a/ui/events/BUILD.gn b/ui/events/BUILD.gn
index 6b45bb96fd09549a8196c1993f8e2145bc2d5c43..1d9e612875b23b991111fcba7930c19847c0f7cf 100644
--- a/ui/events/BUILD.gn
+++ b/ui/events/BUILD.gn
@@ -167,9 +167,12 @@ component("events") {
       "gestures/motion_event_aura.cc",
       "gestures/motion_event_aura.h",
     ]
+    if (is_android) {
+      sources += [ "ozone/events_ozone.cc" ]
+    }
   }
 
-  if (is_win || is_mac || use_x11 || use_ozone) {
+  if (is_win || is_mac || use_x11 || use_ozone || is_android) {
     sources -= [ "events_stub.cc" ]
   }
 }