Merge "Remove exception for injecting pointer event from sendTrackballEventSync" into tm-dev am: 605556d50e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17592143

Change-Id: I008be387cd2a327439de925beadf160abb780a9f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

core/java/android/app/Instrumentation.java

@@ -1207,11 +1207,6 @@ public class Instrumentation {
      */
     public void sendTrackballEventSync(MotionEvent event) {
         validateNotAppThread();
-        if (event.isFromSource(InputDevice.SOURCE_CLASS_POINTER)) {
-            throw new IllegalArgumentException(
-                    "Cannot inject pointer events from sendTrackballEventSync()."
-                            + " Use sendPointerSync() to inject pointer events.");
-        }
         if (!event.isFromSource(InputDevice.SOURCE_CLASS_TRACKBALL)) {
             event.setSource(InputDevice.SOURCE_TRACKBALL);
         }