Add a flag to enable/disable the cache quota calc.

Bug: 34770259
Test: ServicesTests
Change-Id: I74155203c4802b1a3b89117859002bf40b1ca435
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index ebc5b88..6d4b443 100755
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -10200,6 +10200,13 @@
          * @hide
          */
         public static final String ENABLE_DISKSTATS_LOGGING = "enable_diskstats_logging";
+
+        /**
+         * Whether the cache quota calculation task is enabled/disabled.
+         * @hide
+         */
+        public static final String ENABLE_CACHE_QUOTA_CALCULATION =
+                "enable_cache_quota_calculation";
     }
 
     /**
diff --git a/core/tests/coretests/src/android/provider/SettingsBackupTest.java b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
index 48435bd..74bf07c 100644
--- a/core/tests/coretests/src/android/provider/SettingsBackupTest.java
+++ b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
@@ -179,6 +179,7 @@
                     Settings.Global.DROPBOX_TAG_PREFIX,
                     Settings.Global.EMERGENCY_AFFORDANCE_NEEDED,
                     Settings.Global.ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED,
+                    Settings.Global.ENABLE_CACHE_QUOTA_CALCULATION,
                     Settings.Global.ENABLE_CELLULAR_ON_BOOT,
                     Settings.Global.ENABLE_DISKSTATS_LOGGING,
                     Settings.Global.ENABLE_EPHEMERAL_FEATURE,