Settings: New application-level notification settings.

- Convert the old application-level dialog to an activity.
 - Move the settings icon to the new activity (out of the list).
 - Add a custom application header, similar to the switch bar style.
 - Use the ubiquitous vector gear for the settings icon.
 - Migrate old checkboxes to switch prefs, add new summaries.
 - Remove obsolete artifacts.

Bug:16396715
Change-Id: I857e3cf448b79f44fe1c242e6020f5214434c00c

src/com/android/settings/SettingsActivity.java

@@ -82,7 +82,7 @@ import com.android.settings.deviceinfo.Memory;
 import com.android.settings.deviceinfo.UsbSettings;
 import com.android.settings.fuelgauge.BatterySaverSettings;
 import com.android.settings.fuelgauge.PowerUsageSummary;
-import com.android.settings.notification.AppNotificationSettings;
+import com.android.settings.notification.NotificationAppList;
 import com.android.settings.notification.OtherSoundSettings;
 import com.android.settings.quicklaunch.QuickLaunchSettings;
 import com.android.settings.search.DynamicIndexableContentMonitor;
@@ -94,6 +94,7 @@ import com.android.settings.inputmethod.UserDictionaryList;
 import com.android.settings.location.LocationSettings;
 import com.android.settings.nfc.AndroidBeam;
 import com.android.settings.nfc.PaymentSettings;
+import com.android.settings.notification.AppNotificationSettings;
 import com.android.settings.notification.ConditionProviderSettings;
 import com.android.settings.notification.NotificationAccessSettings;
 import com.android.settings.notification.NotificationSettings;
@@ -286,6 +287,7 @@ public class SettingsActivity extends Activity
             ChooseLockPattern.ChooseLockPatternFragment.class.getName(),
             InstalledAppDetails.class.getName(),
             BatterySaverSettings.class.getName(),
+            NotificationAppList.class.getName(),
             AppNotificationSettings.class.getName(),
             OtherSoundSettings.class.getName(),
             QuickLaunchSettings.class.getName()