Reorganize notification Settings classes

The notification package was getting too big.

Test: make -j64 RunSettingsRoboTests
Fixes: 145224451
Change-Id: I25ba82f42f7a137d8adcce72dcf8089d0e018bdc

src/com/android/settings/notification/zen/ZenModeBypassingAppsPreferenceController.java

@@ -0,0 +1,31 @@
+package com.android.settings.notification.zen;
+
+import android.content.Context;
+import android.os.UserHandle;
+
+import com.android.settings.R;
+import com.android.settings.notification.NotificationBackend;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+
+public class ZenModeBypassingAppsPreferenceController extends AbstractZenModePreferenceController {
+
+    protected static final String KEY = "zen_mode_bypassing_apps";
+    private NotificationBackend mNotificationBackend = new NotificationBackend();
+
+    public ZenModeBypassingAppsPreferenceController(Context context, Lifecycle lifecycle) {
+        super(context, KEY, lifecycle);
+    }
+
+    @Override
+    public boolean isAvailable() {
+        return mNotificationBackend.getNumAppsBypassingDnd(UserHandle.getCallingUserId()) != 0;
+    }
+
+    @Override
+    public String getSummary() {
+        final int channelsBypassing =
+                mNotificationBackend.getNumAppsBypassingDnd(UserHandle.getCallingUserId());
+        return mContext.getResources().getQuantityString(R.plurals.zen_mode_bypassing_apps_subtext,
+                channelsBypassing, channelsBypassing);
+    }
+}