Zen: Add a new level: alarms-only.

Like no-interruptions, but allows alarms.

Bug: 19260237
Change-Id: I36bf0a333362256c8e54cd83992cb46c3bcb7f69
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index f79ef35..ec7e8b2 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -7110,9 +7110,11 @@
         /** @hide */ public static final int ZEN_MODE_OFF = 0;
         /** @hide */ public static final int ZEN_MODE_IMPORTANT_INTERRUPTIONS = 1;
         /** @hide */ public static final int ZEN_MODE_NO_INTERRUPTIONS = 2;
+        /** @hide */ public static final int ZEN_MODE_ALARMS = 3;
 
         /** @hide */ public static String zenModeToString(int mode) {
             if (mode == ZEN_MODE_IMPORTANT_INTERRUPTIONS) return "ZEN_MODE_IMPORTANT_INTERRUPTIONS";
+            if (mode == ZEN_MODE_ALARMS) return "ZEN_MODE_ALARMS";
             if (mode == ZEN_MODE_NO_INTERRUPTIONS) return "ZEN_MODE_NO_INTERRUPTIONS";
             return "ZEN_MODE_OFF";
         }