Set default throttle to 30m.

Test: manually

Change-Id: Ib8ce75819095af7e01124a2c55c3a96f7c38740c
diff --git a/services/core/java/com/android/server/LocationManagerService.java b/services/core/java/com/android/server/LocationManagerService.java
index 4ab894f..5646084 100644
--- a/services/core/java/com/android/server/LocationManagerService.java
+++ b/services/core/java/com/android/server/LocationManagerService.java
@@ -142,7 +142,7 @@
     private static final long HIGH_POWER_INTERVAL_MS = 5 * 60 * 1000;
 
     // default background throttling interval if not overriden in settings
-    private static final long DEFAULT_BACKGROUND_THROTTLE_INTERVAL_MS = 10 * 60 * 1000;
+    private static final long DEFAULT_BACKGROUND_THROTTLE_INTERVAL_MS = 30 * 60 * 1000;
 
     // Location Providers may sometimes deliver location updates
     // slightly faster that requested - provide grace period so