Build fix change method signature of enableDataInjection.

Change-Id: I3927aec64f5a1555d2e5d07591fd04e7b3be5f09
diff --git a/include/gui/SensorManager.h b/include/gui/SensorManager.h
index 19c2bdc..4cabf59 100644
--- a/include/gui/SensorManager.h
+++ b/include/gui/SensorManager.h
@@ -54,7 +54,7 @@
     ssize_t getSensorList(Sensor const* const** list) const;
     Sensor const* getDefaultSensor(int type);
     sp<SensorEventQueue> createEventQueue(String8 packageName = String8(""), int mode = 0);
-    ssize_t enableDataInjection(bool enable);
+    status_t enableDataInjection(bool enable);
 
 private:
     // DeathRecipient interface