No logs if BAL hardened result unchanged

If BAL hardening does not change that we allow the start, there is no
reason to print a warning. Currently this emits a lot of warnings for
cases that are not PendingIntents (regular activity starts). In the
BackgroundActivityLauchTest run this reduces the number of BAL wtf logs
from 169 to only 6.

Test: atest BackgroundActivityLauchTest (and inspecting logs)
Bug: 296478951
Change-Id: I332294eb823c38f02aca34bc18eadfd9facb867b

1 files changed, 17 insertions, 0 deletions

diff --git a/services/core/java/com/android/server/wm/BackgroundActivityStartController.java b/services/core/java/com/android/server/wm/BackgroundActivityStartController.java
index 4625b4fe07ef..f8b22c97e218 100644
--- a/services/core/java/com/android/server/wm/BackgroundActivityStartController.java
+++ b/services/core/java/com/android/server/wm/BackgroundActivityStartController.java
@@ -614,6 +614,15 @@ public class BackgroundActivityStartController {
                 == ActivityOptions.MODE_BACKGROUND_ACTIVITY_START_SYSTEM_DEFINED;
         if (callerCanAllow && realCallerCanAllow) {
             // Both caller and real caller allow with system defined behavior
+            if (state.mBalAllowedByPiCreatorWithHardening.allowsBackgroundActivityStarts()) {
+                // Will be allowed even with BAL hardening.
+                if (DEBUG_ACTIVITY_STARTS) {
+                    Slog.d(TAG, "Activity start allowed by caller. "
+                            + state.dump(resultForCaller, resultForRealCaller));
+                }
+                // return the realCaller result for backwards compatibility
+                return statsLog(resultForRealCaller, state);
+            }
             if (state.mBalAllowedByPiCreator.allowsBackgroundActivityStarts()) {
                 Slog.wtf(TAG,
                         "With Android 15 BAL hardening this activity start may be blocked"
@@ -632,6 +641,14 @@ public class BackgroundActivityStartController {
         }
         if (callerCanAllow) {
             // Allowed before V by creator
+            if (state.mBalAllowedByPiCreatorWithHardening.allowsBackgroundActivityStarts()) {
+                // Will be allowed even with BAL hardening.
+                if (DEBUG_ACTIVITY_STARTS) {
+                    Slog.d(TAG, "Activity start allowed by caller. "
+                            + state.dump(resultForCaller, resultForRealCaller));
+                }
+                return statsLog(resultForCaller, state);
+            }
             if (state.mBalAllowedByPiCreator.allowsBackgroundActivityStarts()) {
                 Slog.wtf(TAG,
                         "With Android 15 BAL hardening this activity start may be blocked"