Enable data injection mode in SensorService.

Change-Id: I0cd32a017235c31c54816e4a357ce3b988350ed6
diff --git a/include/gui/SensorEventQueue.h b/include/gui/SensorEventQueue.h
index 02b3d38..b70957b 100644
--- a/include/gui/SensorEventQueue.h
+++ b/include/gui/SensorEventQueue.h
@@ -77,6 +77,8 @@
     status_t flush() const;
     // Send an ack for every wake_up sensor event that is set to WAKE_UP_SENSOR_EVENT_NEEDS_ACK.
     void sendAck(const ASensorEvent* events, int count);
+
+    status_t injectSensorEvent(const ASensorEvent& event);
 private:
     sp<Looper> getLooper() const;
     sp<ISensorEventConnection> mSensorEventConnection;