[fenix] Closes 28414: NotificationManagerCompat extension to safely check if notifications are enabled

app/src/main/java/org/mozilla/fenix/ext/NotificationManagerCompat.kt

@@ -0,0 +1,20 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.ext
+
+import androidx.core.app.NotificationManagerCompat
+
+/**
+ * Returns whether notifications are enabled, catches any exception that was thrown from
+ * [NotificationManagerCompat.areNotificationsEnabled] and returns false.
+ */
+@Suppress("TooGenericExceptionCaught")
+fun NotificationManagerCompat.areNotificationsEnabledSafe(): Boolean {
+    return try {
+        areNotificationsEnabled()
+    } catch (e: Exception) {
+        false
+    }
+}

app/src/main/java/org/mozilla/fenix/onboarding/MarketingNotificationHelper.kt

@@ -11,6 +11,7 @@ import android.os.Build
 import androidx.core.app.NotificationManagerCompat
 import org.mozilla.fenix.GleanMetrics.Events.marketingNotificationAllowed
 import org.mozilla.fenix.R
+import org.mozilla.fenix.ext.areNotificationsEnabledSafe
 
 // Channel ID was not updated when it was renamed to marketing.  Thus, we'll have to continue
 // to use this ID as the marketing channel ID
@@ -47,12 +48,7 @@ fun ensureMarketingChannelExists(context: Context): String {
         channelEnabled = channel.importance != NotificationManager.IMPORTANCE_NONE
     }
 
-    @Suppress("TooGenericExceptionCaught")
+    val notificationsEnabled = NotificationManagerCompat.from(context).areNotificationsEnabledSafe()
-    val notificationsEnabled = try {
-        NotificationManagerCompat.from(context).areNotificationsEnabled()
-    } catch (e: Exception) {
-        false
-    }
 
     marketingNotificationAllowed.set(notificationsEnabled && channelEnabled)