Add QS long-press -> Settings

Bug: 27269699
Change-Id: I861cb65dbb6609d9c95d5341f5f5aebc3cc519f3
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 7ba48b9..512ac92 100755
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -114,6 +114,21 @@
             "android.settings.LOCATION_SOURCE_SETTINGS";
 
     /**
+     * Activity Action: Show settings to allow configuration of users.
+     * <p>
+     * In some cases, a matching Activity may not exist, so ensure you
+     * safeguard against this.
+     * <p>
+     * Input: Nothing.
+     * <p>
+     * Output: Nothing.
+     * @hide
+     */
+    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
+    public static final String ACTION_USER_SETTINGS =
+            "android.settings.USER_SETTINGS";
+
+    /**
      * Activity Action: Show settings to allow configuration of wireless controls
      * such as Wi-Fi, Bluetooth and Mobile networks.
      * <p>