Merge "Fix a SecurityExcption when trying to start low-light dream." into tm-qpr-dev am: 0605e404dd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21994415

Change-Id: I3760952679a5026acc685be97c759a6e1dc68810
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

core/java/android/service/dreams/DreamService.java

@@ -1362,6 +1362,11 @@ public class DreamService extends Service implements Window.Callback {
                 if (!ActivityTaskManager.getService().startDreamActivity(i)) {
                     detach();
                 }
+            } catch (SecurityException e) {
+                Log.w(mTag,
+                        "Received SecurityException trying to start DreamActivity. "
+                        + "Aborting dream start.");
+                detach();
             } catch (RemoteException e) {
                 Log.w(mTag, "Could not connect to activity task manager to start dream activity");
                 e.rethrowFromSystemServer();