Deliver camera launch source for analytics

Bug: 24304031
Change-Id: I606bccf4b62b651e17c6e6d9472648deeab703da
diff --git a/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java b/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
index 5d01931..25d646d 100644
--- a/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
+++ b/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
@@ -28,5 +28,5 @@
     void showScreenPinningRequest();
     void showAssistDisclosure();
     void startAssist(Bundle args);
-    void onCameraLaunchGestureDetected();
+    void onCameraLaunchGestureDetected(int source);
 }