Disable clear notifications when screenshare

When screensharing, notifications that are not dismissable should also
not be clearable

Bug: 324285161
Test: atest StackCoordinatorTest
Flag: ACONFIG com.android.server.notification.screenshare_notification_hiding TRUNKFOOD
Flag: ACONFIG com.android.systemui.screenshare_notification_hiding_bug_fix DISABLED
Change-Id: I44badef472f46b166f94e9a8e1b07f36dbbbfc3c
diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index c845ab3..af89f63 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -692,6 +692,16 @@
 }
 
 flag {
+  name: "screenshare_notification_hiding_bug_fix"
+  namespace: "systemui"
+  description: "Various bug fixes for notification redaction while screensharing"
+  bug: "312784809"
+  metadata {
+    purpose: PURPOSE_BUGFIX
+  }
+}
+
+flag {
     name: "qs_ui_refactor"
     namespace: "systemui"
     description: "Enables the new QS UI pipeline that follows recommended architecture and uses"